Thanks, Emily and thanks, everyone, for joining our call this afternoon. I'm pleased to share that we finished the year strong with annual revenue exceeding $1 billion. This was driven by fourth quarter revenue growth accelerating to 17% year-over-year, primarily due to our subscription revenue growing 19%. Adjusted EBITDA margin for the fourth quarter reached a record 23%, helping drive record operating cash flow of $50 million or 18% of revenue. And record free cash flow of $33 million or 12% of revenue. As you all know, we take a balanced approach to delivering top line growth and bottom line profitability. I'm highly encouraged by the execution and bookings momentum being delivered by our sales organization, especially in the $1 million-plus ARR part of our business. Andy will provide more color on this in a moment. Also, we recently held our global sales kickoff and the passion, energy and excitement were unparalleled as we all aligned on our formula to drive success for our customers and continue building upon our momentum in 2025 and beyond. On today's call, I will spend much of my time covering our progress in AI and how we believe platforms like Five9 are uniquely positioned when it comes to AI for customer experience. We continue to extend our leadership position in AI as demonstrated by our enterprise AI revenue growth accelerating to 46% in the fourth quarter. AI has now grown to 9% of enterprise subscription revenue. We believe AI revenue momentum will continue as AI bookings for enterprise new logos grew nearly 50% year-over-year in Q4. Again, making up more than 20% of enterprise new logo ACV bookings with 100% attach rate on $1 million-plus ARR deals. We are also successfully penetrating our enterprise installed base with AI bookings growing 50% year-over-year in Q4. And now I'd like to spend a few minutes talking about how we believe platforms like Five9 are uniquely positioned when it comes to AI for CX and why we are winning in AI and why we expect to continue winning. Of course, you're all aware that we have a broad portfolio of AI solutions but I'm going to focus today on self-service and AI agents. As consumers, we all know, AI agents will only be used by consumers if they are accurate and personalized. When we say accurate, I think that's pretty obvious to everyone. And when we say personalized, we mean that the AI agent knows enough about you as the consumer such as who you are, what products and services you've purchased from the brand, the details of your recent interactions with that brand, including recent problems or issues you've had and so on. And brands are learning that if they want to offer AI-driven self-service, these AI agents need to be accurate and personalized. And like I said, if they're not, consumers will not use them. CCaaS platforms like Five9 are uniquely positioned to deliver these accurate and personalized AI agents. This is our moat and this is why we believe we will continue to win in AI for customer experience. Let me explain further. Four key ingredients are required to deliver this accurate and personalized self-service using GenAI. First, you need access to LLMs. Second, you need real-time contextual data about the consumer and the brand. Third, you need historical interaction data specific to the consumer and their interactions with that brand. And fourth, you need channels to connect consumers to that self-service application as well as provide an escalation path to a human agent when needed. So let's take these one at a time. The first ingredient, access to LLMs has become commoditized now and all vendors have the ability to use a mix of open source and hyperscaler provided models. Five9, however, has been at the forefront of engine-agnostic AI for many years, ensuring that brands can easily change the underlying engine quickly to leverage the latest, greatest and highest performing models. Our strategy of being engine-agnostic continues to be validated with every new engine that emerges. And as everyone knows, this is happening almost on a weekly basis. Additionally, we have a team of AI experts benchmarking these engines to ensure our customers can leverage the best engine for a given use case. On the other hand, solutions that are built on proprietary models will not be able to leverage these new innovations that are rapidly coming to market. Therefore, we believe Five9's approach allows our customers to future-proof their AI decision. And when it comes to our competitive moat, it's clear that the layer above these engines is what matters. And that layer includes our AI applications that require business logic, that require workflows, that require important data and integrations to back-end systems. The second ingredient, contextual data is what is fed into the LLM in real time and provides true context around an interaction. This includes customer-specific details as well as brand-specific knowledge, both of which are often distributed across many back-end systems. Unlike AI point solutions that require costly one-off integrations to access contextual data in real time. Our platform typically is integrated into more than 20 back-end systems during the initial customer deployment. This means that when a brand adopts AI with Five9, they can immediately leverage our seamless integrations which are designed to reduce cost, accelerate time to value and deliver accurate and personalized experiences at scale. The third ingredient is historical interaction data from which Five9 is the system of record. Historical interaction data is comprised of voice calls, texts, e-mails, web chats and social interactions between a consumer and that brand, including interactions handled by human agents as well as handled by AI agents. This historical interaction data is a significant requirement for personalization. In other words, the AI agent knows not only who you are and what products and services you purchased but it also knows every detail of your prior interactions with that brand, including what problems or issues you had. The fourth ingredient is channels such as voice, text, e-mail, web chat and social. You need these channels to connect consumers to an AI agent as well as provide a seamless escalation path to a human agent when needed. The market demands AI agents that work across all these channels. However, providing the voice channel globally at scale with reliability is a huge barrier to entry. We have invested hundreds of millions of dollars over 2 decades to build that globally connected platform optimized for CX across these channels. AI point solution vendors entering the contact center market have not made that significant investment nor are they likely to which is why they prefer to integrate to our platform. We believe these AI point solutions as well as other third-party AI will continue to integrate to our platform to gain access to these channels from us. That positions our platform as a control point in the AI-driven CX ecosystem, enabling us to monetize that access which we are successfully doing through voice stream and transcript stream. So to summarize, the last 3 of these 4 key ingredients are unique to platforms like Five9. In addition, our AI experts act as a force multiplier working closely with our customers to tailor an AI blueprint for their business and help them deploy our AI solutions to deliver real business impact. We not only have the talent to ensure success but we also provide products like AI Insights to identify high ROI opportunities to deploy AI to enhance CX and drive operational efficiency. As well as our studio products that provide the ability to build these self-service applications, workflows, integrations and business logic. And as a result, we believe our comprehensive AI suite combined with our deep AI expertise will enable us to continue winning in AI. Our differentiated approach to AI is being validated by the industry where we were once again ranked as having the best AI solutions in the semiannual Baird survey that was recently conducted in December. Additionally, industry analysts continue to recognize our innovation with Five9 recently winning the 2024 Aragon Research Innovation Award for AI contact Centers. Five9 was positioned as the most strategic vendor reinforcing our leadership in AI driven CX and our long-term vision for the CX market. Now, I'd like to touch on the momentum we are seeing with our ecosystem of partners. Our partners have been an important part of our success here at Five9. We have significant opportunities in 2025 to continue our momentum following announcements we've made over the last few months with partners such as Salesforce, ServiceNow, Microsoft, Verint and Google. The partnership between Salesforce and Five9 continues to gain momentum, driving alignment across go-to-market strategies, product innovation and customer acquisition. Salesforce and Five9 share a vision where AI agents and human agents work together to elevate customer experiences. We are strengthening the integration between Five9 and agent force to develop industry-specific AI agents, including patient scheduling agent and a collections agent. Furthermore, we are harnessing customer interaction data, such as real-time voice across sales, service and marketing clouds to create a seamless and unified customer journey for brands. In numerous recent wins, we've been able to work with Salesforce to deliver a unified CRM and CCaaS platform for customers to deliver AI elevated CX in industries, including telecommunications, financial services, software, life science and other industries. In November, Five9 and ServiceNow jointly announced an expanded partnership to bring AI-powered solutions for unified employee experiences and customer experiences. By enhancing our integration, we're streamlining self-service and assisted service, creating more efficient support processes that reduce cost, boost agent productivity and elevate customer satisfaction. Via this expanded integration, Five9 and ServiceNow are redefining the next generation of CX, expanding beyond our history of ITSM integration and into integrated CRM experiences. Customers gain single-agent experiences for voice and digital interactions and a unified routing engine to streamline engagement. Additionally, in December, we announced the latest release of our Microsoft Teams UC integration. Enterprises are constantly bringing the unified employee communications platforms closer to the customer services platforms to enhance employee efficiency and productivity. Five9's integration with Microsoft Teams brings this to life and enhances employee productivity by delivering our game-changing bidirectional presence between Five9 agents and Microsoft Teams users to simultaneously view each other's real-time availability. This empowers agents and experts to collaborate internally with confidence. And we are pleased with the momentum we're seeing as we have had several new customer wins during the fourth quarter using this enhanced integration. And with Verint, we've made a key announcement in late Q3 regarding our strengthened partnership announcing a new native cloud-to-cloud platform integration which includes Verint bots. During the fourth quarter, we saw an acceleration of opportunities validating demand for our integrated value proposition. And finally, we're so excited to announce Five9's global availability on Google Cloud Marketplace, including the full Five9 AI-powered CX platform plus the release of a stand-alone, Five9 AI agent designed for Google Cloud. Businesses can now quickly activate Five9 seamlessly through Google Cloud Marketplace, a universal catalog of enterprise-grade, prevalidated solutions that run on or integrate with Google Cloud. This simplifies the procurement, billing and deployment of our joint solution to deliver AI elevated CX. Our innovative solutions which leverage Google Cloud technology can enable organizations to create exceptional customer experiences while leveraging their Google Cloud credits to drive loyalty and business success. We're excited about this new route to market and look forward to bringing on more mutual customers with Google. In summary, our record results and strong traction in our AI business continue to demonstrate the power of our platform and enabling brands to elevate their CX in this rapidly evolving world of AI. At Five9, we've always been ahead of the curve. Just as we paved the way for the cloud revolution in CX, we are now leading the charge in delivering the new CX powered by our suite of AI solutions. I also want to take a moment to thank our amazing team of Five9ers [ph] whose relentless dedication and passion empower us to continue to lead this market. We believe we are well positioned with our AI-powered platform and trusted AI experts to continue driving durable, long-term growth and we look forward to building on our momentum in 2025. Before I turn it over to Andy, I'd like to comment on one more topic. As many of you have probably seen, earlier today, we issued a press release announcing Barry's retirement as CFO effective March 31 as well as his providing assistance with the transition for 6 months. Barry, I just want to express my deepest gratitude to you for your exceptional leadership, partnership and unwavering commitment to Five9 these last 13 years. You have played pivotal role in shaping our company's growth, financial strength and company culture. Your contributions have been invaluable. It has been an honor to work alongside you Barry. And on behalf of the entire Five9 team I wish you the very best in your well-earned retirement. I'm also pleased to announce the appointment of Bryan Lee, our long-term EVP of Finance to the role of interim CFO. Bryan will be joining us on the call today. As many of you know, he has gained an extremely deep understanding of our business over the last 11 years. Having worked closely with Bryan during his tenure here at Five9, I'm excited to have him step in as interim CFO and I'm confident in his ability to excel. We will be kicking off a CFO search with Bryan as an internal candidate. And with that, I will now turn it over to our COO, Andy Dignan. Andy, please go ahead.