Thanks, John. In an uncertain market, our performance through the first half was solid, with organic revenue growth near the midpoint of our annual guidance and our adjusted EBITDA margin levels flat. As we begin the second half, less uncertainty in the macro environment may allow marketers to normalize spending levels, although it is still too early to say that the uncertainty in the macro environment has been eliminated. The larger parts of our business continue to perform very well, and we continue to invest in our technology platforms and tools that differentiate us in the marketplace. And at the corporate level, as John said, we are focused on planning for the integration of IPG so we can hit the ground running. Let's now review our results in more detail, beginning with changes in revenue, on slide three. Organic growth in the quarter was 3%. The impact on revenue from foreign currency translation increased reported revenue by 1.1% as the U.S. Dollar weakened relative to most currencies throughout the quarter. If rates stay where they are, we estimate the impact of foreign currency translation on revenue will approximate positive 1% for Q3 and positive 2% in Q4, which would result in a benefit from foreign exchange of approximately 1% for the full year 2025. The net impact of acquisitions and dispositions on reported revenue was positive 0.1%. At this time, we expect the impact of acquisitions and dispositions completed to date will be minimal for the full year 2025. Let's now turn to slide four for a summary of our income statement. This table shows our reported numbers on the left, and non-GAAP adjusted numbers on the right. Adjusting for acquisition-related expenses and repositioning costs, our Q2 2025 non-GAAP adjusted EBITDA grew 3.7% to $613.8 million with a margin of 15.3%. And our non-GAAP adjusted diluted EPS grew 5.1% to $2.05. To highlight the two adjustments made to operating expenses, the first is an increase in Q2 of acquisition-related expenses related to both regulatory approval work and an acceleration in our integration planning work. The second relates to repositioning actions, primarily severance, we took to optimize Omnicom Advertising Group and Omnicom Production Group, as well as to align our businesses and markets more broadly to recent changes in market conditions and client demand related to the challenging macro environment. Please turn to slide five for a reconciliation of these items in detail. Acquisition-related costs of $66 million in Q2 2025 increased from the $34 million we incurred in Q1 of 2025. And repositioning costs were $89 million during Q2 of 2025. We continue to expect our non-GAAP adjusted EBITDA margin for the year to be 10 basis points higher than our 2024 results of 15.5%. As we get closer to closing the acquisition of IPG, we'll be evaluating ways to accelerate savings opportunities prior to the closing date. We continue to expect to achieve our cost savings target of $750 million. Let's now turn to slide eight and review organic revenue growth in more detail, beginning with our disciplines. Media and advertising was up 8%, with solid growth in most geographies. Overall results were driven by strong growth in our media business and mixed performance in advertising. Precision marketing grew 5%, including strong performance in our digital, CRM, and experienced design agencies in the U.S., offset by mixed performance internationally. Public relations declined 9%, primarily in the U.S., due largely to weaker performance in our global networks and some reduction relative to the benefit in 2024 from national election spend. We expect to see a difficult comp for the rest of 2025. Healthcare revenues were down 5%, and this includes our having now cycled through a large prior period client loss, as well as work winding down on brands that are close to loss of patent protection. We continue to expect improved performance as the year progresses. Branding and retail commerce was down 17%. Branding experienced continued pressure from uncertain market conditions impacting both new brand launches and rebranding projects, as well as continued slow M&A activity, while retail commerce in the quarter slowed. Experiential grew 3%, driven by good performance in the U.S., offset by a challenging comparison to last year with the Olympics, as well as declines in the Middle East and China. Lastly, execution and support increased 1%, driven by strong growth in the U.S., offset by negative performance in the UK and Continental Europe. Turning to organic revenue growth by geography, on slide nine. We saw growth across all of our regions with the exception of the UK, where strength in media and advertising was offset by other disciplines. Our largest market, the U.S., organic growth of 3%. And Asia Pacific also posted solid growth, as well as Continental Europe, although mixed by market. Slide 10 is our revenue by industry sector. Year to date relative to 2024, there are various small changes in the categories we track. The auto category increased year over year, reflecting new business wins, which were offset by some client spend reductions. Now let's move down the income statement and look at our expenses on slide 11. In the quarter, salary-related service costs, our largest expense, were down on a reported basis and as a percentage of revenue, driven by our continued efficiency initiatives and ongoing changes in our global employee mix. Third-party service costs grew in connection with the growth in revenue, primarily in the media and advertising discipline. Third-party incidental costs are out-of-pocket costs billed back to clients at our cost, also grew in connection with revenue growth. Occupancy and other costs increased just under 4%, but decreased as a percentage of revenue. These include office rent, other occupancy, and general office expenses, as well as technology expenses. SG&A expenses increased primarily due to $66 million of IPG acquisition-related costs in the second quarter of 2025. Excluding these costs, reported SG&A expenses declined by 6%. Turning to slide 12, you can see a presentation of our income statement that adjusts for the items that are not part of our normal course operations. As I mentioned earlier, when excluding both the acquisition-related and repositioning costs from the second quarter of 2025, non-GAAP adjusted EBITDA grew 4.1% and the related margin was flat at 15.3%. Net interest expense in 2025 was flat, reflecting a decrease of $1 million to $40.7 million. We estimate that net interest expense will increase by approximately $4 million in Q3 and by $5 million in Q4. Our reported income tax rate was 30.2% in Q2 of 2025, compared to 26.4% in the prior year. The increased rate is primarily due to the non-deductibility of certain acquisition-related costs in 2025. On an adjusted basis, our Q2 2025 rate was 26.5%, up slightly from '24, which was 26.3%. For full-year 2025, we expect the rate on an adjusted basis to be between 26.5% and 27%. Average diluted shares outstanding were down 1% in Q2 2024, due to net repurchase activity. While reported diluted earnings per share were down 21%, on an adjusted non-GAAP basis, as discussed, it increased 5% to $2.05 per share. Now please turn to slide 12 for a look at year-to-date free cash flow. Year-over-year decline was driven primarily by the reduction in net income resulting from the impact of both the acquisition-related costs and the repositioning costs. As you know, our free cash flow definition excludes changes in operating capital. As you can see in the appendix on slide 18, we had an improvement of approximately $250 million in the use of operating capital in the first six months of 2025 compared to last year. It's worth noting that on a twelve-month basis, our change in operating capital is once again positive. Regarding our primary uses of free cash flow, for the six months ended June 30, we used $277 million of cash to pay for dividends to common shareholders and another $34 million for dividends to non-controlling interest shareholders. Our capital expenditures were $72 million. As we've discussed, they are a bit higher than our historical average due to ongoing investments in our strategic technology platform initiatives. Total acquisition payments were $48 million, including earn-out payments and the acquisition of additional non-controlling interests. This is down significantly from last year, which included the acquisition of Flywheel, net of cash acquired. Finally, our share repurchase activity was $223 million, excluding proceeds from stock plans of $13 million. This included share repurchases of $142 million in Q2 and $81 million in Q1. We still expect repurchase activity of approximately $600 million in total for the year. Slide 13 is a summary of our credit, liquidity, and debt maturities. At the end of Q2 2025, the book value of our outstanding debt was $6.3 billion, flat with the same prior year period. We have no maturities in 2025. However, you will note that our $1.4 billion April 2026 maturities are now classified as current on our balance sheet. We will address these in due course. Our cash equivalents and short-term investments at the end of the quarter were $3.3 billion. We continue to maintain an undrawn $2.5 billion revolving credit facility, which backstops our $2 billion US commercial paper program. Slide 14 presents our historical returns on two important performance metrics. For the twelve months ended June 30, 2025, Omnicom Group Inc.'s return on invested capital was 18% and our return on equity was 34%, both of which reflect our strong performance and strong balance sheet. Year-over-year change is driven by the IPG-related acquisition costs and the repositioning costs incurred in the twelve months ended June 30, 2025. I will now ask the operator to please open the lines up for questions and answers. Thank you.