Alright!
Once upon a time, a greatest rock singer in the world, said to his friend, Brian: "Thank God it's Christmas!"
"The show must go on!" - said Brian.
Suddenly, Freddie received a SMS message from his doctor: "You are AIDS possitive". He screamed: "It's a hard life!!!" Then he wanted to commit suicide!
Roger stopped him and asked what the hell was he doing. Freddie answered: "Keep passing the open windows...", Brian said: "Don't try suicide!" Freddie cried: "Don't stop me now!". After that he jumped!
I don't think this story is funny enough...you can make one better than this ;)