Thanks, Ellen. During the course of 2023, both our industry and our company faced an elevated degree of volatility. And while the top line improved measurably through the fourth quarter, for the year, we did not perform up to our expectations or the standards we set over the long term. We've covered the ins and outs of this performance as it relates to our asset and client mix. To address the needs of modern marketers in recent years, you've seen us create centralized skill sets and resources in areas such as audience definition and identity resolution and more recently, commerce and production. We're connecting more of our traditional offerings to these capabilities, and in order to activate these services fully across the group. During 2023, we also brought in a number of key functional leaders at the corporate group level. Our strategy, talent and culture continue to drive innovation, creativity and integrated services, which come together in ways that help our clients succeed. Another key to our long-term growth has been our expertise in first-party data management and accountable marketing solutions. These continue to be areas of core relevance to marketers looking to build their brands and simultaneously deliver business outcomes in an increasingly digital economy. More recently, we have focused on 4 strategic areas to further our data and technology strategy. First is a suite of identity resolution tools built by Acxiom to help clients navigate a cookie-less world. Second, our unified retail media network solution and IPG Mediabrands which ensures brands have a holistic view of their performance across the fast-growth ecosystem of retail platforms. This, in turn, integrates with our commerce offerings across the company, which extends to all core marketing functions, whether that's media, creative, experiential or earned impressions in PR. And fourth, our investment in performance marketing at KINESSO moving powerful addressable solutions closer to our end users, which is helping brands follow the movement of customers throughout their purchasing journey and then activate accordingly. Analytics teams as well as modeling and decisioning tools are core to all these efforts. These are also areas where we continue to make investments in Artificial Intelligence. It's important to note that AI is not new. Machine learning has been an ongoing part of our media and data business for many years. Combined with the latest advances in generative AI, we're now adding the same level of intelligence for the creation of personalized content across the marketing spectrum. We believe our current and prospective investment in AI continues to be at rates commensurate with competitors relative to the scale of our respective organizations. IPG has enterprise-level agreements in place with a range of key AI vendors, including Amazon, Adobe, Microsoft, Google, Getty and OpenAI as well as with innovative and emerging partners in this space. Our programs with these leading technology partners have resulted in products that are already being used by marketers, including Mediabrands where our client-facing brand voice and brand portrait capabilities help us activate campaigns on behalf of clients. IPG Mediabrands also launched a new AI chat assistant to optimize internal workplace productivity and enhance employee work styles through the use of Gen AI. At Huge, clients are using the agency's AI powered culture decoder and creative capital index tools to help clients on their transformation journeys, and R/GA is using Gen AI across practice areas and include creative concepting, research and analytics. Weber Shandwick has a group called the AI accelerator. It's both the team and a product set that help our clients with technical and cultural issues related to generative AI, training marketers on the technology and ensuring that they're using the tools as effectively and ethically as possible. Across a number of markets, both domestically and internationally. And with clients in a range of industries, we are in market with campaigns that feature thousands of variations of content all made possible by this expanding use of Gen AI and enabling our capabilities with the technology. As I mentioned earlier, we've also enhanced our senior team at IPG to ensure that our centralized resources in key areas like audience and identity, commerce and production are being used across the group, and this includes a Chief Client and Business Officer, who will drive collaboration and integrated service delivery for our clients. Chief Commerce Strategy Officer, who is connecting the existing channel and platform expertise across the portfolio. The Chief Solutions Architect, who's orchestrating our approach to marketing tech solutions that combine data and platform capabilities with partners such as Adobe and Salesforce. And just this week, we announced that one of the industry's top creative leaders will come across and join the team at IPG to focusing on championing talent and delivering innovative ideas and creative platforms across the company. I'll turn now briefly to the highlights of agency-level performance in Q4. As mentioned, Mediabrands performed well, closing out another very strong year. And a noteworthy development was the announcement at IPG Mediabrands and Amazon Ads had entered into a three-year agreement to help brands reach audiences through Prime Video ads. It's made us the first holding company to partner with Amazon Ads on this exciting new offering, which we believe will be significant in the evolution of the media marketplace. The recently streamlined and integrated KINESSO offering at a standout quarter and Media Post named Media Agency of the Year for 2023. At UM, we saw a global win with Boeing in partnership with FCB as well as the promotion of two internal leaders to be both the global and U.S. CEO. An initiative was named Media Network of the Year by the Festival of Media over North America and won that same honor for the sixth consecutive year in Latin America. At Acxiom, on the platform side, the company was spotlighted as an identity and onboarding leader in Snowflake marketing data stack report. Acxiom has also launched a new data offering in the healthcare space and the Acxiom Health data set is going to enable our healthcare clients to significantly increase campaign conversions and improve the success of display and video advertising. As we've mentioned, IPG Health had a strong quarter, leveraging tailwinds from both new business wins and its long-standing leadership in the category in terms of industry recognition, the unit dominated at the Medical Marketing and Media Awards being named Network of the Year for the second consecutive year. FCB's performance was strong as it has been consistently over the course of 2023. Clorox consolidated all of its U.S. creative duties with the agency during Q4. And at year-end, the network continued to garner top industry accolades creatively with Global Network of the Year honors at the one show and similar honors for its North America operations. Our earned and experiential agencies momentum worldwide became the first agency to secure AI patents diffuse machine learning and AI to create smarter and more targeted experiences for consumers and Octagon brought on a range of new clients in the fourth quarter, notably Subway as well as significantly expanding its work with clients such as SNICKERS in the Premier League. Our PR network showed solid growth during the quarter. We saw this across geographies. The healthcare sector was a strong contributor, driven by a key AOR appointment at Walgreens and new assignment with existing clients, Vertex, Weber one AOR duties for Eventbrite and also created the biggest earned media campaign ever on the part of CeloNova [ph], one of our important clients as part of their college football bowl sponsorship and Golan was appointed to lead Fidelity's U.S. PR efforts including external newsroom operations earned media relations, crisis management as well as content and measurement. On the ESG front, we announced our inclusion in three key corporate ratings. The Dow Jones Sustainability Index for North America, the Human Rights Campaign's Corporate Equality Index and a best place to work on the disability equality index. We see earning recognition from these leading organizations as further validation of our efforts to create a fair and inclusive culture across the organization. Now stepping back, I think we know that the world in which we live is increasingly digital, that more than ever, clients need help from us in using audience-led thinking powered by data and AI to solve for a widening set of business problems and opportunities. As always, we're going to continue to invest behind the growth of businesses by developing our own people and continuing to differentiate our offerings. This includes investment in upskilling, training and recruitment, particularly around AI, but also marketing platforms and cloud computing. Our plans also include a disciplined approach to M&A, which will focus on opportunities that are consistent with strategic growth areas, notably increasing our scale and capabilities in digital transformation, and our total commerce offerings. As stated earlier, despite the continued uncertainty we're seeing in some key client sectors, we are targeting growth in 2024 in the range of 1% to 2%. Consistent with that level of growth and the investment needs that we've discussed with you this morning, we foresee adjusted EBITDA margin of 16.6%. Based on our long-term track record, we're confident that margins will resume their upward trajectory in the year ahead. Of course, another key area of value creation remains a very strong balance sheet and liquidity. And our ongoing commitment to capital returns is evident in the actions announced by our board today, which also speaks to confidence in our strategic trajectory and our future prospects. Now that commitment to capital returns is in addition to meeting the M&A priorities mentioned earlier. I would just like to close by thanking our clients, our people around the world. Of course, those for you on this call for your continued interest and support. And with that, let's open the floor to your questions.