From the official CH4 site
As part of Big Brother's Birthday Party Task, designated musician Brian is undergoing a crash course in being a one-man band.
"Are you feeling musical?" Brian was asked by Big Brother, having been summoned to the Diary Room.
"Oh yeah!" cheered Brian. "Woo! Woo!"
Brian was directed into the colourful Practice Room, located to the left of the Diary Room where Big Brother played him an instructional video.
"Shut up!" gasped Brian, "Nooo!"
The video showed an expert one-man band offering to teach him the chords to the classic party song, Happy Birthday.
Brian looked less than thrilled at the prospect of learning to play the guitar.
"This is the chord of C, the next chord is the chord of F and then this chord is the chord of G," came the voice from the video, "and that's all there is to it."
"You're having a bubble!" Brian exclaimed. "I can't play guitar!"
Brian stared in horror as he watched the professional strummer on the video.
"Shaddap You Face!" Brian said.
He wasn't being rude, this was the title of the song he had to learn.
http://geo.channel4.com/bigbrother/n...y.jsp?id=14101