Thanks, Bill. Good afternoon, everyone. Today, I'll be discussing our first quarter 2025 financial results and provide an update on our preliminary second quarter 2025 outlook. All financial metrics except for revenue will be discussed in non-GAAP terms unless otherwise specified, and all comparisons will be discussed on a year-over-year basis unless otherwise noted. Before I get into our first quarter results, I'll spend a few minutes discussing how we're thinking about our broader business strategy. Over the last few years, we've been executing on a durable long-term strategy focused on our key differentiators as a business, including the user commercial intent on our platform, the ability to create a relevant and actionable experience with ads as useful content, and leveraging our full funnel playbook to drive tangible performance gains for advertisers. We have multiple revenue drivers that have allowed us to take share in a competitive environment across a variety of advertiser verticals. The first is continuing to grow our user base and deepen engagement, bringing users back more frequently through our efforts and actionability and curation. As we've stated many times, relevant ads can be great content for our users and additive to the user experience. And as such, we see room to further grow our ad load as we increase monetizable supply through user commercial intent and more efficient ad delivery. Second, we're continuing to drive improved performance throughout the full funnel from spotlight ads on the awareness side to rapid product velocity, especially in the lower funnel with the launch of direct links, CAPI, and most recently, Performance+, which is in the early days of multi-quarter and multi-year advertiser adoption. Finally, we're finding ways to complement our strong and growing first-party business through new sources of demand, including efficient ways to scale our monetization through partnerships such as resellers, which is starting to drive more meaningful revenue contribution in undermonetized and previously un-monetized regions. At the same time, we continue to be thoughtful about expenses and prioritizing investment in high ROI opportunities, which has allowed us to make considerable progress towards our longer-term margin goals. For example, we continue to focus our AI investments towards initiatives that have a near-term uplift to engagement and monetization such as improving our visual search capability as Bill described earlier as well as improving the technology that underpins our ad-serving efficiency, such as Whole Page, Optimization and Performance+. Simultaneously, we're investing in areas which accelerate employee productivity. For example, over 25% of our code is now generated through AI, which is up 10 points since the beginning of the year. Similarly, we've begun testing productivity tools to automate repetitive tasks and standardize content for our sales force, ultimately allowing our sellers to spend more time with clients. Ultimately, as Bill noted upfront, we are confident in the long-term durability of our strategy and the continuation of our steady execution of that strategy through our prudent investment philosophy. Now let's move to our first quarter results. We ended the quarter with 570 million global monthly active users, or MAUs, growing 10% and reaching another record high. We continue to demonstrate user growth across all of our geographic regions. In Q1, our U.S. and Canada region had 102 million MAUs, growing 4%; our Europe region had 148 million MAUs, growing 5%; and in the Rest of World markets, we had 320 million MAUs, growing 14%. Shifting to revenue. In Q1, our global revenue was $855 million, up 16% or up 17% on a constant currency basis. We saw strength across our awareness and conversion objectives. From a vertical perspective, we continue to see broad-based strength in retail. Additionally, emerging verticals led by financial services continue to be a source of strength. As expected, the drag from the food and beverage subsector of CPG lessened slightly to be lapped the full quarter of softer Q1 2024 trends in that category. Turning to our geographical breakout for Q1. In the U.S. and Canada, we generated $663 million in revenue, growing 12%. Strength came from retail and emerging verticals, including financial services. In Europe, revenue was $147 million, growing 24% on a reported basis or 27% on a constant currency basis. Strength in Europe was driven by retail. Revenue from Rest of World was $45 million, growing 49% on a reported basis or 59% on a constant currency basis. In Q1, ad impressions grew 49%, while ad pricing declined 22% year-over-year. As we've discussed for multiple quarters, the sequential acceleration in ad impressions and corresponding decline in ad pricing is primarily driven by international mix shift as last year, we began to serve ads in previously un-monetized or undermonetized international markets, which carry lower ad pricing than our more mature markets. Moving to expenses. In Q1, cost of revenue was $193 million, up 10% year-over-year and up 1% versus Q4 due to increased infrastructure spend related to users and engagement growth. Our non-GAAP operating expense was $494 million, up 12%. The increase was primarily in R&D due to increases in headcount with a smaller increase in sales and marketing. Our robust revenue growth and expense discipline led to another strong quarter of adjusted EBITDA, coming in at $172 million with an adjusted EBITDA margin of 20%, an increase of 300 basis points versus Q1 last year. We also delivered Q1 free cash flow of $356 million. Consistent with prior years, Q1 is seasonally our strongest quarter of free cash flow due to higher Q1 collections following peak Q4 revenue. We ended the quarter with cash, cash equivalents and marketable securities of $2.6 billion. In Q1, we allocated $175 million towards share repurchase -- share repurchases and $94 million on net share settlement of equity awards as part of our ongoing efforts to mitigate dilution. Now I'll discuss our preliminary guidance for the second quarter. Before addressing specifics, I want to acknowledge the current evolving landscape. As Bill noted, our business trends remain healthy overall, and we feel good that the product investments we've made over the last 3 years are working. While we are not immune to the macro environment, we are confident in our multiple revenue initiatives, the steady ongoing execution of our plans and our ability to compete effectively across a number of scenarios. We expect Q2 revenue to be in the range of $960 million to $980 million, representing 12% to 15% growth year-over-year. Based on the current spot rates, we expect a modest impact on foreign exchange in Q2. Moving down the P&L. We expect Q2 2025 adjusted EBITDA to be in the range of $217 million to $237 million. We anticipate Q2 2025 non-GAAP cost of revenue to grow at a similar rate on a year-over-year basis as we saw in Q1. Within non-GAAP operating expense, our primary area of investment in Q2 will continue to be headcount within R&D, which will support our efforts in AI and other product initiatives as well as investing in sales and marketing, which tends to be seasonally higher in Q2 than in Q1 due to the timing of certain marketing expenses. From where we sit today, we expect to deliver adjusted EBITDA margin expansion year-over-year for the full year 2025, though consistent with our commentary last quarter, the level of expansion will be lower than the outsized expansion we delivered in 2024. In closing, I'm extremely pleased with our team's performance in Q1. We're focused on executing against the levers firmly in our control, like growing and deepening user engagement through a better, more relevant product and driving performance for our advertisers, all while balancing investing in the business and driving long-term profitable growth. With that, I'll hand it over to Bill for some final words.