Thanks, Jeremi. Our Q1 financial results reflect our priorities of growing our community, making focused investments in the future of our business and scaling our operations efficiently in order to drive towards profitability and positive free cash flow. As Evan mentioned earlier, our community grew to 229 million daily active users in Q1, with year-over-year growth accelerating to 20% up from 17% in the prior quarter. While we observe higher engagement in the final weeks of the quarter, as many in our community sought to stay connected and entertain from home. This has little impact on our Q1 results, as we calculate this metric using a daily average. As a result, we were already on pace to accelerate year-over-year growth in daily active users absent this impact, the accelerating growth in our community reflects the cumulative impact of improvements we have made to our application, which are contributing to higher levels of engagement and the sustained retention of new Snapchatters. The growth in our community continues to be broad-based with year-over-year growth rates accelerating on both iOS and Android platforms, as well as across each of our North America, Europe and rest of world regions. In North America, DAU grew by 10% year-over-year, compared to 9% in the prior quarter; in Europe DAU grew by 14% year-over-year, up from 12% in the prior quarter; in rest of world, DAU grew by 45% year-over-year compared to 36% in the prior quarter. We believe the accelerating growth of our community and an increasingly competitive market for attention on mobile clearly demonstrates the value of our differentiated platform. Q1 revenue was 462 million, an increase of 44% year-over-year, which is consistent with our growth rate in Q4, and just above the midpoint of our guidance range. The economic environment has become challenging for many of our advertising partners and this has had an impact on the rate of growth in our business. For example, year-over-year growth in January and February was approximately 58%, before declining to approximately 25% in March. We believe that the elevated growth rates we observed at the beginning of the quarter are a strong indication of our ability to accelerate growth under normal market conditions, and that our Q1 results in total provide additional evidence of our ability to continue to grow our share of the advertising ecosystem over the long-term. In North America, revenue grew 40% year-over-year in Q1 compared to 42% in the prior quarter. The modest deceleration in North America in revenue growth reflects the impact of the lower growth rates we observed in March. In Europe revenue 61% year-over-year in Q1 compared to 47% in Q4. We were pleased to see that year-over-year revenue growth accelerated in Europe, as this was just the second full quarter following our international sales team reorganization. And rest of world revenue grew 49% year-over-year in Q1, which was consistent with the prior quarter. All regions saw their growth rates decline in the month of March by roughly equivalent magnitudes. We continue to see strong adoption of our ad products, including our goal based bidding products, which are driving increased demand from direct response advertisers. Over the past two years, we've continued to add more objectives to our self serve platform that advertisers can use to optimize their campaigns, including app installs video views and purchases tracked by our pixel. We have also made significant improvements to our measurement capabilities and optimization models. As a result of these enhancements, direct response advertising has nearly doubled as a share of our revenue over the past two years, and represents more than half of our total revenue delivering a direct return on investment to our advertising partners ensures that we are well positioned to defend and grow our share of advertising budgets in any macro environment. Total impressions nearly doubled year-over-year in Q1, while cost per impression continued to stabilize with a year-over-year decline in eCPM of 23% in Q1, which is a modest improvement over the 24% decline observed in the prior quarter. The ongoing growth and engagement combined with optimizations to our self serve platform to utilize our inventory more efficiently are driving continued expansion of our available supply, which has placed downward pressure on eCPMs despite rapid growth in overall advertiser demand. Gross margins were 47% in Q1, up 8 percentage points year-over-year, infrastructure cost per DAU were $0.71 in Q1, down from $0.72 in the prior year, as we continue to make progress against our goal of driving down our underlying unit costs over time including the cost of deliver a Snap, the cost of deliver an impression and other key drivers of infrastructure costs. On the content side, we have been doubling down on our investments and premium content and we were pleased to see the total time spent with discover content grew by more than 35% year-over-year. Time spent with shows, which includes scripted and unscripted series, as well as daily news, shows more than doubled year-over-year in Q1 with more than 60 of our shows reaching monthly audiences of over 10 million viewers. We are particularly pleased that we have been able to make these investments in content while continuing to expand our gross margin, which reflects our overall approach of scaling our operations efficiently, while making investments in the future of our business. Operating expenses were 298 million in Q1 up 20% year-over-year. The increase in operating expenses reflects continued investment in our talent base, which has been focused on our monetization and engineering teams. We have also made investments in marketing to grow our advertiser base and Snapchatter community, which have contributed in part to robust growth in these areas. While there is typically a lag between these investments and improved output metrics, we are pleased with the results we're seeing as far. Adjusted EBITDA was negative 81 million in Q1, an improvement of 42 million over the prior year and in line with the midpoint of our guidance range. In q1, we delivered adjusted EBITDA leverage of 30% which is meaningfully positive, but down from 54% in the prior quarter. We have continued to invest in the long-term growth of our business in order to build on the momentum we have established with our community and our advertising partners, despite the near-term impacts of the COVID-19 crisis on revenue growth rates. While this has put downward pressure on adjusted EBITDA leverage in the near term, we believe it is the right decision for the long-term growth of our business, given the strength of our balance sheet and improving cash flow. Q1 marked our first quarter of positive operating cash flow at 6 million for the quarter an improvement of 72 million year-over-year driven by the improvement in adjusted EBITDA and the collection of seasonally hired Q4 advertising revenue. Free cash flow was a negative 5 million for the quarter and improvement of 73 million year-over-year. We ended the quarter with 2.1 billion in cash and marketable securities, which was roughly flat versus the prior quarter. We also have access to more than 1 billion in additional capital by our credit facility. Given the rapidly changing environment, we do not intend to share financial guidance for Q2 in the same manner that we have in recent prior quarters. But we do want to provide a sense for where we are today and how we plan to invest in our business. Thus far in Q2, we estimate year-over-year revenue growth to be 15% through April 19. And our estimated growth rate in the most recent week is 11%. Today, we have less visibility into Q2 results, because so much depends on factors beyond our control, principally, how the world continues to manage the COVID-19 crisis and if or when the world's economy begins to recover. Therefore, it is not clear at this point how growth rates may evolve as we move through the quarter. We are cautiously optimistic that trends could improve over time if conditions begin to normalize. But we are also conscious that economic conditions may not improve and some of our advertising partners could continue to face headwinds caused by the crisis. Given this, we will not be sharing revenue or adjusted EBITDA guidance for Q2. We will, however, be sharing estimates on our cost structure. And these estimates assume that daily active users will be approximately 239 million in Q2, which implies year-over-year growth of approximately 18% against a tougher comparison period that included the benefit of engagement growth related to last year's launch of the new lenses powered by deep neural networks. On the expense side, we currently expect that our combined cost of revenue and operating costs will grow year-over-year in Q2 at rates roughly equivalent to what we observed in Q1. This implies the potential for modest sequential growth and the combined expense base, which we expect would be driven by the impact of higher engagement on infrastructure costs and the impact of investments in our talent base on operating costs. Given that a small minority of our cost structure varies directly with revenue in the short-term, we do not currently expect substantial variants in these cost estimates, regardless of the ultimate revenue outcome in Q2. While there is uncertainty about near-term revenue growth rates, we remain highly optimistic about the long-term prospects for our business. We remain optimistic because we believe that there are numerous factors that position our business to perform relatively well in the current environment. One, our team has thus far managed the transition to remote working conditions seamlessly and with a high degree of productivity, such that we have been able to continue to deliver for our community and our partners. Two, we are experiencing strong community and engagement growth which provides more inventory and wider reach for our advertising partners. Three, we have built a robust ad platform where advertisers can optimize for a positive return on their advertising investments. Four, our cloud-based infrastructure has allowed us to scale seamlessly and with our incremental capital expenditure as user engagement has scaled across our platform. Five, we've put significant effort into establishing an efficient cost structure, and building the mechanisms to ensure that the investments we put into our business are highly productive Six, we have made significant progress in reducing our operating cash burn, and as a result, have just produced our first quarter of positive operating cash flow. And seven, with 2.1 billion in cash and marketable securities, and an available credit line of over 1 billion, we have the working capital necessary to stay focused on a long-term and be opportunistic in this channel environment. Thank you for joining our call today and we will now take your questions.