David Beckham and B.O.B are in it too!

Adidas have packed a whole load of celebs and sporting stars into their brand new 'All Adidas' ad campaign, including David Beckham, B.O.B and pop princess Katy Perry!

Yeah, we're surprised too. Normally when we think of Katy Perry, it's an array of shimmering, glittery, fruit-clad outfits, which may or may not have built-in LED lights that comes to mind before sportswear. But hey, she must workout a lot to stay in such awesome shape so we're just going to roll with it!

Click next for more pics and a behind the scenes interview with Katy...