Thanks, John. We delivered solid results this quarter, including organic revenue growth, growth in adjusted EBITDA, and growth in non-GAAP adjusted diluted EPS. We believe that diversification of our portfolio of agencies across geographies, industries, and service offerings will help us in the uncertain environment ahead. Let's begin with a brief overview of our earnings for the quarter on slide three. Reported revenue grew 2%. Note, our total reported operating expenses include $33.8 million of IPG acquisition-related costs in the first quarter of 2025. At the bottom of this slide, the non-GAAP measures remove these IPG acquisition-related costs from adjusted EBITDA, which was also up 2%, and the related margin was flat with last year at 13.8%. Now let's go into a more detailed review of our performance, beginning with changes in revenue on slide four. Organic growth in the quarter was 3.4%. The impact on revenue from foreign currency translation decreased reported revenue by 1.6%, a bit less than our original expectation for the quarter of 2.0 to 2.5%. In the current environment, it's difficult to forecast the impact of FX rates on our future revenue for the rest of 2025. If rates stay where they were at quarter-end, we estimate the impact of foreign currency translation on revenue will be negative 0.5% for Q2 2025, negative 1% for Q3, and flat in Q4, which would result in a negative 1% reduction for the full year 2025. The net impact of acquisitions and dispositions on reported revenue was negative 0.1%. At this time, we expect the impact of acquisitions and dispositions completed to date will be minimal for Q2 and for the full year 2025. Let's turn to slide five and review the quarterly organic revenue growth trends by discipline. First, however, I would like to point out a change we made for 2025. In connection with the rollout of Omnicom Group Inc. production, Omnicom advertising group, we have made some minor reclassifications of certain revenue related to changes in the agent groupings across our service discipline categories. You can find the revised revenue by discipline presentation with the reclassifications of the historical 2024 and 2023 numbers in the appendix on slides 21 and 22. Turning to the quarter, media and advertising was up 7%, driven by strong growth in our media businesses across our geographies and mixed performance across our advertising agencies, which were down a bit. Precision marketing grew 6%, driven primarily by strong performance in the US, partially offset by mixed performance in other geographies. Growth reflects strength from the benefits of new business wins in our CRM agencies that began late last year. We as well as continued good performance at Flywheel. Public relations declined 5% due to certain client delays and reductions from certain government clients. As the year progresses, we expect benefits from public affairs activity, our specialty agencies, and we expect a difficult comp for the rest of 2025 related to the benefit in 2024 from US election-related spend. Execution and support grew 2%, driven by growth at our custom communications businesses, offset by declines at our merchandising business. Experiential declined 1%, driven by the Middle East and Asia Pacific, partially offset by strong growth in the US, Europe, and the UK. We also expect a difficult comp in Q2 and Q3 related to the benefit in 2024 from Olympics-related spend. Healthcare revenues were down 3%, as expected, slightly better than a decline in Q4, as our health group manages through some delays and client product launches, and as they complete cycling on a client loss. We expect improved growth in the second half as the year progresses. Branding and retail commerce was down 10%, with most of the decline in our branding business, which is due to uncertain market conditions impacting both new brand launches and rebranding projects, as well as the continued slowdown from M&A activity. Turning to organic revenue growth by geography on slide six, our largest market, the US, had organic growth of 5%, and Latin America grew a strong 15%. Europe experienced growth, but it was mixed by market, and Asia Pacific also posted growth, offset by declines in the UK, the Middle East, and Africa. As we look at the global trade uncertainty, we expect our geographic diversification to provide balance to our results. The US remains approximately half of our revenue, and it's worth noting that in fiscal year 2024, China was only 2% of our total revenue. Slide seven is our revenue by industry sector for the quarter. There were no notable changes to discuss. Now let's move down the income statement and look at our expenses on slide eight. In the quarter, salary-related service costs were down on both a reported and constant dollar basis, driven by our continued efficiency initiatives and ongoing changes in our global employee mix. Our Q1 2025 employee base is down from Q1 of 2024. Third-party service costs grew in connection with the growth in our revenue, primarily in the media and advertising discipline. Third-party incidental costs, which are out-of-pocket costs billed back to clients at our cost, also grew in connection with revenue growth. Occupancy and other costs were flat. These include office rent, other occupancy, technology, and general office expenses. SG&A expenses increased due to the $33.8 million of IPG acquisition-related costs in the first quarter of 2025. Excluding these costs, reported SG&A expenses declined by about 1%. Please turn to slide nine to look at our income statement in more detail. Excluding the acquisition-related costs from the first quarter of 2025, non-GAAP adjusted EBITDA grew 1.6%, and the related margin was flat at 13.8% compared to last year. Foreign exchange translation reduced EBITDA by approximately 1.5%. Moving down the income statement, net interest expense in the first quarter of 2025 increased $2.6 million to $29.4 million. This increase is the result of having a full quarter of interest expense in Q1 2025 from the debt we issued in early March 2024 in connection with the Flywheel acquisition. The increase in expense was partially offset by an increase in interest income due to higher average cash balances. Our income tax rate was 28.5% in Q1 of 2025, compared to 25.7% in the prior year. The increase is primarily due to the nondeductibility of certain acquisition-related costs in 2025. Excluding a tax impact on these costs, our Q1 2025 rate was up a bit from Q1 2024, at 26.7%. For full year 2025, we expect the rate to be between 26.5 and 27. Average diluted shares outstanding were down 1% from Q1 of 2024, due primarily to repurchase activity last year. Reported diluted earnings per share was down 8.8% due to the after-tax acquisition-related costs. On an adjusted basis, diluted earnings per share increased 2% to $1.70. The effects of foreign currency translation reduced diluted EPS by two cents. Now please turn to slide ten for a look at free cash flow for the first quarter. Year-over-year decline in the quarter was driven primarily by a reduction in net income, which includes the impact of the acquisition-related costs. However, for the twelve months ending March 31st, 2025, our free cash flow increased 3.5%, driven primarily by improved operating income and net income. Our free cash flow definition excludes changes in working capital. Our working capital followed its normal seasonal pattern in the first quarter, and over time, we expect to trend back towards our historical annual level that's close to neutral. Regarding our primary uses of free cash flow for the three months ended March 31st, we used $138 million of cash to pay for dividends to common shareholders and another $13 million for dividends to noncontrolling interest shareholders. Our capital expenditures were $30 million. As expected, the spend was a bit higher this period, reflecting ongoing investments on our strategic technology platform initiatives. Total acquisition payments, which include earn-out payments and the acquisition of additional noncontrolling interests, were $4 million. As a reminder, in the first quarter of last year, we closed on the acquisition of Flywheel for $845 million net of cash acquired. Finally, our share repurchase activity was $81 million, excluding proceeds from stock plans of $12 million. For full year 2025, we still expect to return to an annual repurchase level of approximately $600 million, and we resumed our activities subsequent to the successful March 18th stockholder vote on the IPG acquisition. Slide eleven is a summary of our credit liquidity and debt maturities. At the end of Q1 2025, the book value of our outstanding debt was $6.1 billion, flat with the same prior year period. We have no maturities in 2025 and expect to address our April 2026 maturities after the expected closing of the IPG acquisition in the second half of 2025. We estimate that net interest expense will increase by $2 to $5 million in Q2 compared to Q2 of 2024, and by $15 to $20 million for the full year, related to lower estimates of interest income in the second half. Our cash equivalents and short-term investments at the end of the quarter were $3.4 billion. We continue to maintain an undrawn $2.5 billion revolving credit facility, which backstops our $2 billion US commercial paper program. We will assess our revolver capacity in connection with the closing of the proposed IPG acquisition. Slide twelve presents our historical returns on two important performance metrics. For the twelve months ended March 31, 2025, Omnicom Group Inc.'s return on invested capital was 20%. Our return on equity was 37%, both of which reflect our strong performance and strong balance sheet. The year-over-year change is driven by the IPG acquisition-related costs incurred in the twelve months ended March 31, 2025. I will now ask the operator to please open the lines up for questions and answers. Thank you.