This advert's on a lot and it advertises a section on BBC3's website where you can upload your own video clips and 'be on TV'. The tune only lasts about 10 or 20 seconds and there doesn't seem to be any singing in it. I'm keen to find out who does it, quite soon, before they stop playing it! Cheers :D It's really nice. It was on (BBC3) after Gavin & Stacey on Sunday 6th April 2008 at about 9.30pm.