Thanks, Jeremy, and good morning. Today marks the end of our initial three year plan. Our aggressive technology and product transformation is delivering a first-of-its-kind integrated HR platform capability that supports employees staying healthy and financially secure. We have upgraded all of our clients from over 6,000 custom solutions to a common SaaS-based platform and taken over 200 million interactions a year out of a private data center and into the cloud. Because of this, we were able to deliver a better experience for 10 million people by tripling the mobile usage through annual enrollment. This capability did not exist 18 months ago. Within the platform, we have built over a thousand AI content modules, which have taken our engagement rates from 10% to over 50% This means employees are engaging with us on average 22 times per year and because of this our AI decision support is driving $500 in savings on average per participant. This is the foundation for the future of that has allowed us to add millions of people, while reducing calls per participant by 20% and still achieving record customer satisfaction, all attributable to our product enhancements and better AI capabilities. It is these investments that have allowed us to enter 2024 with a record backlog of revenue under contract of $3 billion, which is up $900 million from three years ago. This is being driven by our high-growth BPaaS solutions that have delivered over 2.2 billion of cumulative bookings and included win such as Nielsen IQ, MasterBrand and Siemens Health and Ears to name a few this year, and has also generated a 30% BPaaS revenue CAGR over our three-year plan. Our strategy has enabled Alight to move from a low single-digit grower to mid-single-digits and we've added hundreds of millions of dollars in profit, while increasing our operating cash flow conversion from 19% in 2021 to 52% 2023. It is this Track record that gives us the confidence to reaffirm our midterm financial outlook. In fact, we believe there are opportunities to advance our platform and well-being strategy. We have hired financial advisers who have been conducting a strategic portfolio review to accelerate our midterm financial and strategic objectives of becoming a higher margin and more recurring revenue business. In doing this review, we believe we can move even faster to deliver value for our clients, colleagues and shareholders. As you can see, while we're excited about the long-term, we also have to deliver in the short-term. In late December, we experienced an isolated impact from a significant retiree health client, which resulted in revenue growth of 9% for the year short of our expectations. Mitigation efforts in this business and renewal activity of Medicare plans did not offset this impact and represented the majority of our revenue shortfall for the quarter and for the year. This is a specific non-recurring event. Absent the retiree business, Alight’s annual growth was nearly 11%. For the quarter, both adjusted gross margin and adjusted EBITDA margins expanded over 200 basis points with double-digit adjusted EBITDA growth. We also grew BPaaS revenues nearly 30%. Sales momentum continued with BPaaS bookings of 261 million and combined with 3Q, the second half of 2023. Re finished ahead of the comparable period in 2022, even without the benefit of an extraordinary new win like GE. Turning to our 2024 financial outlook, we expect BPaaS revenue growth of over 15% and adjusted EBITDA growth between 8% and 10%. Revenue growth of 4% to 6% reflects the impacts from the timing of our 2023 bookings, the exit of the hosted business and the year-over-year Comparative Federal Thrift. As Katie and Jeremy will discuss, with our record backlog and strong pipeline, we are on track to achieve our midterm revenue growth guidance of 6% to 8%. All told, I'm incredibly proud of the way our team has executed on our transformation, not just in 2023, but over the past few years. To become the leader in this space, it took us 40 years to build the infrastructure to support the most complex organizations globally and in less than four years we have extended our leadership position by building a cloud-based platform with the most comprehensive collection of content to transform the HR function. For clients, the output is a one-stop shop that helps them bend the cost curve and deliver a better employee experience with enhanced productivity. Let me give an example of a client where we're helping solve for costs experience and productivity. Siemens has been an Alight client since 1996 and is focused on the health and well-being of its employees. Siemens chose Alight to provide high touch, tech-enabled health navigation services to its employees, helping employees manage and navigate the complexity of the healthcare ecosystem is an opportunity to not only improve health outcomes, but to improve employee satisfaction. Upon rollout, employees and eligible dependents may choose with confidence top doctors and facilities or to receive expert medical opinions, surgery decision support and even medical bill, review all while optimizing the value of Siemens Benefits Program. I've spoken at length about driving outcomes for companies and their people and believe that the only way to get the results that client seek is through engaging employees at an enterprise platform level. And is the central hub the Alight Worklife platform is leveraging AI-based technology to drive better engagements and decisions. To that end, I am excited to introduce our recently launched next-generation AI engine, Alight LumenAI. LumenAI will merge novel and existing AI capabilities into a new unified ecosystem that deliver product innovation and facilitate an interconnected experience for clients across all our solutions. We believe the tools currently being piloted will be a catalyst that drives value for clients by better engaging their employees across their benefits such as personalized HR campaigns, health guidance, virtual assistant interactions and intelligent document processing. This will complement the amazing proof points we see today, including helping a large client realized nearly $50 million in verified healthcare savings through our insights and automation engines by directing better health care choices. Coping and other organization realized five point four times lower new higher turnover through our personalization engine and use of financial counselors by creating a personalized digital onboarding experience for all their new hires. And lastly, helping a large retailer reduce overpayment spend in payroll by nearly $200 million. Examples like these are growing everyday and represent real measurable outcomes attributable to our platform strategy. And while great for clients, the outcomes are also great for Alight. These outcomes only happen if employees trust our platform to guide them and that's why we've been focused on the importance of a mobile-based platform. To give some perspective this quarter, we had nearly 0.5 million monthly average mobile users, an 80% increase over the prior year and 32% sequentially. Total mobile interactions for the entire year nearly doubled to over 19 million. This matters because first it means more product penetration and second it means users are seeing real value when they do engage. That's the foundation to drive these client outcomes I just laid out and is driving value for our company. Developing LumenAi and executing on our product roadmap would not be possible without our cloud migration, which is on track for completion in mid-year. We will start seeing the benefits of this program financially in the second half. Overall, I'm more excited than ever that the work we've done will continue to support our clients in solving the most complex decisions, impacting their employees health and financial security. With that, I'll turn it over to Katie and Jeremy to discuss the financial performance and our outlook. Katie, over to you.