Maroon 5 hop into their cars to drive around LA, crashing a series of weddings and perform their latest pop confection, Sugar. It's a brilliant wheeze devised by David Dobkin, who has some previous experience with this particular concept - his directing credits includes Hollywood smash Wedding Crashers.

And of course everyone is completely surprised and utterly delighted that Maroon 5 are suddenly performing at the wedding. In fact, at least one of the grooms looks like he's going to explode...