My sister and I shared a bedroom our entire lives and I believe she discovered the Beatles when she was about 11 and I'm four years younger. So from the age of 7 until 17 we had nothing but Beatles paraphernalia in our room even those little stuffed Beatles that went on stands that are dressed as the Sgt. Pepper band.
The thing I thought about doing it was it's Comic Relief and you've got to be funny. So although I did try to sing properly it obviously has hilarious results when you can't sing.