You have to read the article.
I tracked down the sketch he mentioned.
It’s after the 11 minute mark when Mccartney chimes in.
http://www.youtube.com/user/rednoseday?gl=US&hl=en
It even has Bieber even though he isn’t a Brit
I loved this. I saw it right after red nose day. The George Michael part was hilarious and - Gordon Brown!! I think you have to watch a lot of BBC America to truly appreciate how funny it was.