Thumbs-up to you!

Jason DeRulo stops by to get a plaque to commemorate our 10 Billionth Thumb.

Just over a week ago, on Sunday, April 24th at 4:46pm, "Ridin' Solo" by Jason DeRulo received Pandora's 10 billionth thumb. 10 BILLION...wow!

Of the many milestones we've hit over the past 6 years, this is perhaps the one that makes us most proud. We created Pandora to bring personalization to radio, to allow each individual to determine the sound of their stations, and to make it as simple and intuitive as possible. There is no greater evidence for us of meeting that objective than the ongoing engagement you have all shown in your use of the thumbs.

Not a day goes by that we don't work to improve how the Music Genome Project works. And there is no greater impact on the project's development than the contribution you are all making, one thumb at a time, to our understanding of how to build great playlists. Our team -- musicians, mathematicians, statisticians, radio programmers, software engineers, music lovers and more -- absorbs the feedback from you daily, looking for new insights and adjustments that your contributions reveal.

What started as an improbable effort by a group of musicians, around a dining room table, is now a massive project, involving tens of millions of avid music fans. Little by little we are all collectively creating a music discovery engine that might just deliver on the grand promise of the web -- a completely personalized listening experience for every user, and an effective outlet for tens of thousands of deserving artists. We now have over 800,000 songs in our collection, and over 95% of them play in a given month.

All of us are humbled by the continued engagement you have shown with Pandora, not only with your thumbs, but also your general advice, suggestions, and critiques...by the thousands. We listen intently. And it is all adding up.

We will continue to work every day to get better, as this task has no end. And that's what makes this so much fun.

Thanks again for being a part of this.

Tim (Founder)

P.S. That 10 billionth thumb was, indeed, a thumb-up. ?

heidi klum joe jonas haircut sarah silverman conan o\'brien craig ferguson