You hear them for the whole of December (or thereabouts) every year. So if you think about it, that's approximately 1/12th of your life soundtracked by shit.
also mentions for
john lennon- war is over
slade (it can be fun when your hammered at a party)
wham- gay yes but christmassy
and i remember kylie doing a version of santa baby in a short skirt on totp years back. that was hot