Thanks Yao, and good afternoon, everyone. Welcome to our 2024 first quarter earnings call. I'm going to focus on three topics today. First, our Q1 financial results and the latest views on macro. Second, how we are going after our market opportunity. Third, continued product innovation and customer stories. Let's start with the Q1 financial highlights. Our first quarter revenue was $72.6 million, up 9% year-over-year. Annual recurring revenue was $285 million, up $4 million from the end of the fourth quarter. We now have almost 3,000 paying customers, up 37% year-over-year. Results exceeded the midpoint of guidance we gave last quarter, and in part reflect the efforts we've made to focus our investments over the past year. Macro conditions remain consistent. There are still challenges out there as companies continue to right size their digital investments and VC backed startups continue to cut back to survive. We believe we have our arms around the magnitude of these changes and have appropriately accounted for them in our revenue guidance. There is growing evidence to support our view that these headwinds are temporary. New ARR has been holding steady as the need for digital analytics remains consistent. We see green shoots and emerging catalysts to growth acceleration. We are getting closer to flushing out the worst excesses of the pandemic surge. We're seeing more conversations with many customers who realize they need to future -proof the way they approach their digital analytics journey. We remain at the beginning of a generational shift in how people view, understand, and use their customer and product data. Point solutions and legacy technology are limited. They offer a fragmented user experience and provide an incomplete picture of customer behavior. The digital experience is one of the most important channels that all businesses can control. It is the repository of first-party customer behavior and intent. Actions speak louder than words. What people do with your product is more important than anything they tell you. We are going after a multi-billion dollar addressable opportunity and believe we remain incredibly well positioned to win the category as the convergence of buyers and budgets across product, marketing, and experience continues. Everyone wants to understand their customers better. Amplitude tells you exactly what your customers do and how they behave across the entire customer journey. Many of the largest and fastest-growing companies care deeply about acquisition, retention, and monetization and view Amplitude as their first call. You've heard me speak to progressively up-leveling our go-to-market efforts across many dimensions over the last year as we look to win the enterprise. I've shared how we've aligned around a more defined approach to account ownership engagement. I've talked about how newer leaders are driving discipline and rigor, helping us think bigger and elevating our customer relationships. We're not just doing the basics better. We've also brought focus to the way we sell to drive stronger unit economics for different customers. We launched a self-serve offering for the lower end of the market and have been resourcing our sales motion with a name-to-count focus. Amplitude Plus is our self-serve offering customers of all maturity levels try before they buy. Our PLG motion continues to gain momentum. This helps us scale our offering in a more cost-effective way. Plus is attracting a diverse range of customers. Beyond the startup and B2B SaaS players we expected, we're also seeing railroads, universities, and semiconductor companies sign up. These users are trying Amplitude for the first time and they represent a tiny fraction of the addressable user base out there. It has only been one quarter since we instituted our named account approach, but we are seeing increased impact across our organization. As a reminder, our CRO, Nate and team have halved the number of target accounts while growing targeted high potential account dollars by 50%. This approach will take time to mature, but we are seeing some early promising signs. There is greater traction for our professional services portfolio through the named account model. We're also seeing early signals of improvement across pipeline and customer health that we believe will translate to better efficiency metrics. When it comes to renewals, we've talked before about multiyear contract customers who are rightsizing their spend, common theme across software optimizations. As expected, churn was still at an elevated level in the first quarter. There's an important observation that's worth noting as we work our way through these pandemic cohorts. These relationships are actually healthier post-renewal. We are now more aligned with our customers' current growth ambitions. Utilization relative to capacity purchased is also at more balanced levels. For customers who have optimized with us one time, the majority of the associated ARR either renews flat or grows off of that base. I speak with customers all day long, and I believe we're being set up for long -term success in ways that we previously were not. We're aligning with senior executive buyers at the VP and C-level as well as multiple champions. We're driving higher-level conversations that are much more aligned with value and business outcomes. We're attaching services, driving more use cases across our entire platform, and positioning to economically scale with their future growth. Finally, I want to focus on the work being done to innovate on our digital analytics platform, both improving our current offerings and bringing new solutions to market. Product innovation is the biggest driver of long-term growth for Amplitude. Other companies in our space have dramatically scaled back their ambitions, pared down their teams, and reduced product velocity. We are taking the opposite approach. We are making bigger, bolder bets. Our Chief Product Officer, Francois, is strategically organizing our strong animate patient muscle. We continue to see validation that our platform approach is the right one. Traditional enterprise companies don't want a patchwork of disjointed points solutions. They want one end-to-end platform that covers all of their digital analytics needs. They don't want to waste money on duplicative tools. Most importantly, they want deep customer insights so they can impact the metric that matters most, revenue. Today, 19% of our annual contracted customers use more than one product, up from 14% the same time last year. Customers who use more products retain better. There remains a very real opportunity for us to expand the platform, grow cross-sell, and displace point solutions. Our thesis is that analytics is the center of gravity for any workflow that touches customer and product data. Without analytics, the rest of the stack is much less useful. We bring data, insight, and action together in ways that no other solution can. We are expanding our platform. Session Replay is off to a nice start in its first few months. As a reminder, Session Replay helps our customers reconstruct a user visit by capturing how they interacted with a website, app, or digital experience. It is a tool commonly used by product, marketing, and data teams to understand user behavior, diagnose product issues, and improve outcomes. The majority of Session Replay wins to date are competitive displacements of an existing points solution. In contrast, we almost never see companies transition from Amplitude Analytics to another Session Replay provider that has an analytic solution. We are leaning into win simple across our product organization. To accelerate growth, we are reducing barriers to entry. We have to bring the power of Amplitude to everyone regardless of their technical expertise. We focused on radical simplicity as a core differentiator. We've made major improvements to our entire product experience to help accelerate finding and landing new customers by releasing a one line of code implementation as the default onboarding experience for Starter and Plus users. We're already seeing a 30% increase in activation for that group from some of those early changes we've made. We have ambitious goals. We want to reduce our sign-up process down to seconds and then deliver a customer's first to wow within minutes. There's more to do. Turning to customers. Rocket Money, a leading personal finance app, is a great case study for how Amplitude's digital analytics platform can drive incredible business outcomes. By understanding user behavior patterns and changes, Rocket Money was able to identify inconsistencies in their product experience and blockers to user success. They made changes so that iOS, Android, and web users followed the same customer journey. They also added functionality so that every segment of users could easily upgrade to premium. These changes boosted customer lifetime value significantly and estimated by Rocket to drive millions of dollars in revenue a year. In Q1, we landed and grew with companies like Decathlon SE, Algolia, WOOP, TicketSwap, Verda Health, The Browser Company, Meow Wolf, and Calendly. One big win this quarter is Calendly, the scheduling platform with more than 20 million users around the world. Calendly needed a source of truth for clean, accurate data to activate on, and its previous analytics provider had become a black box. In Q1, Calendly selected Amplitude Analytics and CDP as a centralized source of truth for customer data and activation. With a consolidated tech stack, Calendly will have more control over its data governance, privacy, and security. Its team will also have a deeper understanding of the customer journey so it can improve its primary growth levers, including customer activation, monetization, and retention. We also won The Browser Company, best known for its new Arc browser. The Browser Company had been using SQL infrastructure for user analytics, but it encountered bottlenecks in data access as the team grew. Several members of their leadership team came from companies that used Amplitude, and they strongly advocated for The Browser Company to adopt multiple parts of our platform. With Amplitude, The Browser Company will now have a better data-based way to make key decisions and improve its user experience. Lastly, one big expansion this quarter is with one of the world's largest automotive services providers for car shoppers, dealers, and lenders. Prior to 2024, Amplitude primarily worked with its B2B team. In the last year, there was a major company effort to have product, IT, and data teams roll into centralized leadership under their chief product officer. We've seen this move happen at other companies too, as more businesses understand the growing importance of product and the need for an aligned tech stack to solve for Customer 360. Understanding Customer 360 for them means needing to piece together the disparate digital journeys from the moment a car is purchased from auction to its listing process to inventory loading to customer website traffic and all the behavior associated thereafter. It is a huge problem to solve from beginning to end. Amplitude was built from first principles to solve this very problem. We expanded to their consumer organization this quarter, displacing Google Analytics and another point solution due to scalability, depth of analysis, and platform breadth. Now leaders from more than 20 business units will rely on Amplitude to understand their customers and inform every product decision. Before I hand it over to Criss, I want to emphasize that our opportunity to lead the digital analytics category remains unchanged. We remain focused on what we can control. I am not satisfied with our current growth profile, and we are not standing still. I want everyone to know that we are driving focus to set ourselves up for accelerating growth. Our platform approach is differentiated and resonating. We're driving healthy new business and taking market share. We continue to be relentless about driving innovation. We are almost through the cycle of rightsizing renewals. Green shoots continue and we see more pockets of strength and weakness. I'm incredibly excited about what's ahead. With that, thank you for your interest and Amplitude. I'd now like to turn it over to Criss to walk through the financial results.