Okay, here's the deal: the host of Virgin Radio's evening show was admiring the size of the handicapped stall in the radio station's bathroom, and decided that it would be cool to have a concert in there and see how many people fit. Concurrently, he's a big fan of a Swedish band called I'm From Barcelona which boasts over 20 members.
Anyway, here is the video of the event, and if you feel like listening to the whole thing you should check out the Januray 24th Geoff Show podcast, and skip ahead to the 46 minute mark. If you do go ahead and download the podcast, then you should also check out an entertaining round of Drunk vs Stoned, which starts at the 1:24:35 mark. Good times.