a song called "Merry Cu$@mas"

His chance of having a No 1 every decade since the 1950s is about to come to an end.

probabaly true yes but will any other modern artist have a Number one song in 5 decades I cant see it.

Probably not. The shelf life of most of those who get number one singles tends to be very short these days. Still being relevant five years after your first single is fairly good going, far less fifty years.

Its a Tinchy Stryder duet :P