Thanks Logan. Good afternoon everyone. Before I walk through the numbers, let me start with an update on supply. As Logan shared, we are extremely pleased with the significant impacts and results of our Q3 supply investments. We entered the quarter determined to improve service levels given growing demand trends. In Q3 known [ph] driver activations increased 34% quarter-over-quarter and jumped over 100% versus the number of activations in the first quarter of this year. The growth in new drivers contributed to strength in active drivers which increased nearly 20% quarter-over-quarter. In this improving supply position hopefully volume growth that enabled us to outperform our financial outlook, we delivered 73% year-over-year revenue growth and on a quarter-over-quarter basis we nearly tripled adjusted EBITDA to $67 million. We also achieved record contribution margin and revenue per Active Rider. And keep in mind that we generated these results despite the impact of COVID variants which delayed the return to office for many companies. Before I move on, I want to note that unless otherwise indicated, all income statement measures are non-GAAP and excludes stock-based compensation and other select items as detailed in our press release. A reconciliation of historical GAAP to non-GAAP results is available on our Investor Relations website and may be found in our earnings release, which is furnished with our Form 8-K filed today with the SEC. Let's move to the details. Q3 had strong unit growth. Despite increasing COVID case counts, the sequential growth of Q3 rideshare ride volume accelerated and jumped by over 80% relative to the Q2 growth rate. This is fueled by broad sequential strength across cities. In terms of specifics, 99 of our top 100 cites generated positive sequential rideshare ride growth in Q3. New Orleans was the sole outlier given Hurricane Ida. Additionally, average daily rideshare ride volume increased each month in Q3. Beyond rides we saw healthy growth in unique riders. In Q3 the number of Active Riders increased by 51% year-over-year and 11% quarter-over-quarter to $18.9 million. New rider activations increased by 47% year-over-year. Revenue per Active Rider increased by 14% year-over-year to an all-time record of $45.63. Revenue per Active Rider benefited from a 6% sequential increase in ride frequency, which we partially attributed to improving service levels. The combination of these trends led to a $99 million sequential increase in third quarter revenues of $864 million which was above our revenue outlook of $850 million to $860 million. It is worth noting that bikes and scooters provided roughly $10 million of the $99 million increase given their seasonal strength. For the second quarter in a row we achieved a new record contribution margin level. Contribution margin in the third quarter was 59.4% which exceeded our outlook of 58.5% to 59% representing nearly 10 percentage point increase from Q3 of 2020. The outperformance of revenue and contribution margins relative to outlook helped our strong Q3 contribution of $514 million. For each dollar of incremental revenue growth versus Q2, contribution increased by over $0.60. As a reminder, contribution excludes changes to liabilities for insurance required by regulatory agencies attributable to historical periods. In the third quarter there was no adverse or positive development net of reinsurance recoverables. Let's move to operating expenses. Operations and support expense for Q3 was $103 million, a decrease of 12% year-over-year. Operations and support expense as a percentage of revenue was 12% in Q3, up slightly from 11.3% in Q2, which is primarily from bikes and scooter rental activity as well as growth in background checks related to driver onboarding. R&D expense in Q3 was $109 million, down approximately $20 million quarter-over-quarter resulting from the sale of our Level 5 self-driving division which closed in July. As a percentage of revenue R&D expense declined 12.7% in Q3, down from 26.2% in the year ago period. Q3 sales and marketing was $99 million. As a percentage of revenue sales and marketing was 11.5%, roughly flat from Q2 11.6%. Within sales and marketing, incentives were less than 2% of revenue. G&A expense in Q3 was $167 million, a decrease of 18% year-over-year. G&A expense as a percentage of revenue was 19.3%, a decrease of 70 basis points quarter-over-quarter. In terms of the bottom line, our Q3 adjusted EBITDA profit of $67 million was above our outlook of between $25 million and $35 million and nearly triple the $24 million achieved in Q2. It is worth noting that Q3 adjusted EBITDA included $18 million of benefits related to two items. First, we captured additional gains of $8 million related to Flexdrive selling vehicles. Second, we were able to settle a legal matter and released accrual that provided a combined $10 million benefit to G&A expense. Without these gains total $18 million our Q3 adjusted EBITDA profit was $49 million. Unrestricted cash, cash equivalents and short-term investments increased quarter-over-quarter to $2.4 billion. Before I move to our Q4 outlook, I want to remind investors that the pandemic is not yet over. Future conditions can change rapidly and may impact our outlook. With that, let me share what I can. In terms of supply, given our success in Q3, onboarding new drivers and expected tailwinds, we plan to taper supply investments in the fourth quarter. Of course when it's extra busy we will use dynamic pricing to fund extra incentives to help retain and attract additional drivers on to the platform. In terms of rides in October we achieved our sixth straight month of growth in average daily rideshare ride volume. As a reminder though, in North America rideshare faces seasonal headwinds in November and December given the impact of holiday demand in both 2019 and 2020, so pre-COVID as well as during COVID October was the peak month of the fourth quarter in terms of rideshare rides. We expect the same trend this year. Additionally there is a population of drivers who have not yet revealed their full range of pre-COVID activities. Moving to ride line increased over the summer. In Q3 we were still down about 35% from our peak. The reasons and circumstances vary. Some people are concerned about the most recent surge in case counts are awaiting for boosters. There are parents who are preventing certain activities until their kids are vaccinated. And remember those waiting for mask mandate setting in and first time it’s a combination of these factors. Secondly, with the summer rise in COVID case counts, many companies postponed return to office until Q1. This is especially true in a city like San Francisco and data point Q3 rideshare rides in San Francisco were down by more than 60% versus Q3 of 2019, meaning San Francisco quarterly rideshare rides were less than 40% recovered from two years ago. Given the delayed return to office and other contributing factors, the recovery is tied to additional ridesharing use cases is more likely a first half 2022 event, especially in Key West and City like San Francisco. We have typically this tailwind we're hoping on the volume next year. It is a matter of when, not if. For these reasons, year-over-year revenue growth for full year 2022 is expected to exceed the rate for 2021. So in terms of our outlook, we expect revenue in Q4 of between $930 and $940 million. This is implies growth of between 63% and 65% year-over-year versus the 73% achieved in Q3. This outlook includes the typical Q4 rideshare seasonality and the delayed reopening acceleration. In addition, remember that Q3 is also the seasonal peak for Micro-Mobility in North America. In the fourth quarter bike and scooter revenue is expected to decline by up to $20 million quarter-over-quarter which is included in our outlook. In terms of profitability, we expect Q4 contribution margins to be around 59% given the impact of seasonality among other factors. The midpoint of our outlook for revenue and contribution margin implies with the all time record for the contribution including the level in Q4 2019. We continue to expect a contribution of per ride basis with be greater post-COVID than it was pre-COVID. In terms of bottom line we expect our Q4 adjusted EBITDA will be between $70 million and $75 million versus the $49 million in Q3 and adjusted to exclude the $18 million of benefits. Similar to revenue, we face seasonal pressures in Q4 and for that matter in Q1 as well that can pressure EBITDA trends. In 2019 so pre-COVID our adjusted EBITDA loss increased between Q3 and Q4. Last year we undertook layoffs in Q4 that obscured the typical trend. So the fact that expect to increase adjusted EBITDA profitability sequentially in Q4 despite the headwinds speaks to the improvements we've made to our cost structure. The Q4 outlook implies adjusted EBITDA margins of approximately 8%. This compared to 7.8% in Q3 or 5.7% without the $18 million of benefits. Separately, based on our momentum, we continue to expect that Lyft will achieve adjusted EBITDA profitability on our full year basis in 2021 which is an important milestone. In fact, year-to-date through Q3, Lyft has already generated cumulative positive adjusted EBITDA of nearly $20 million. The midpoint of our outlook comprised annual 2021 adjusted EBITDA of approximately $90 million which represents an improvement of roughly $880 [ph] million year-over-year. So let me close. Through the inception we've overcome a number of formidable challenges by remaining resilient and focused on our execution and strategy. The pandemic is no exception. Over the past 18 months we have transformed our operating model, achieved adjusted EBITDA profitability ahead of expectations, and are now demonstrating improving leverage. Looking forward as we emerge from the pandemic, we expect to be a stronger company with greater leverage. We plan on building a significantly larger business as we attack the massive market opportunity ahead of us. We see exciting opportunities to lean into growth, to deliver solutions that serve and expand our addressable market. At the same time given our growing scale, expecting tailwinds from the recovery, we are positioned to unlock natural business leverage. So we are expect that we can fund these growth opportunities even as we generate improvements to overall profitability. So, with that, let me turn it over to John, to provide key updates on the business and our strategy.