AdWeek.com - Over the weekend, BBC Radio 1 kicked off the U.K. festival season with "The Big Weekend" in Dundee, Scotland, featuring acts like Pink, Snow Patrol and Mylo. But not all fans who caught the show did so in the real world. Instead, the BBC simulcast the concert on an island it created in Second Life, an online virtual world, where fans could listen to the music, mingle, dance, even dive down a mudslide—all with no lines for the bathroom.