Eye-popping X Games action

The world's premiere action sports event, X Games 15, starts today in Los Angeles with a slew of competitions, including street park and vert ramp skateboarding, BMX, motocross, rally car and more — and we'll have all the jaw-dropping, mind-exploding moments on YouTube, courtesy of ESPN.

Bonafide legends and legends-in-the-making will be competing, with big air masters like skateboarder Danny Way, BMX rider Dave Mirra and Moto X rider Todd Potter putting it all on the line. What's at stake for these athletes? A lot more than prize money and titles...

While the Mega Ramp and vertical events always draw the oohs and aahs, many skateboarding industry watchers are hotly anticipating the skate park and street events, thanks to a field stacked with YouTube heroes Mike Mo Capaldi, Paul Rodriguez, Andrew Reynolds, Ryan Sheckler and (Wallenberg and Maloof Cup winner) Chris Cole. The women's field is also highly competitive this year, with young stars Leticia Bufoni and Marisa Del Santo slated to skate.

To celebrate the 15th anniversary of X Games and to whet your appetite for the event, ESPN put together a greatest hits playlist with the best moments from each year, including Travis Pastrana's gravity-defying motocross double-backflip in 2006 and Tony Hawk's epic 900-degree spin ("The 900") from 1999.

ESPN will be uploading daily highlights, interviews, features and behind-the-scenes video to their channel and to a XG15 playlist. Subscribe to make sure you don't miss a beat.