Been a few new ones recently, always fun. Can't for the life of me remember some of the best ones of the past though, so post them here

Nirvana's Bleach EP
http://drownedinsound.com/community/boards/music/4453959#r8288006

MSP featuring Flea (even CG fell for this one)
http://drownedinsound.com/community/boards/music/4454069#r8291428

Survey on the use of mobile phones at gigs
http://drownedinsound.com/community/boards/music/4454071

Radiohead's monkey song
http://drownedinsound.com/community/boards/music/4454105#r8292663

The classic Radiohead - Creep (no drums)
http://drownedinsound.com/community/boards/music/4324362#r6562818