Top of my list would have to be:
The Sex Pistols (everyone of their 'songs')
Malcolm McLaren was a genius who somehow managed to make this lot a success.
I liked some of the 'punk bands' Clash, Jam and Stranglers though.
'Worst' or most annoying songs
"Grandad" Clive Dunn
"Hole in the ground" Bernard Cribbins
"Little White Bull" Tommy Steele
"High on a hill stood a lonely goatherd" Sound of Music
Most rap singers
"I'm gonna wash that man right out of my hair" South Pacific
"Tiptoe through the tulips" Tiny Tim
"Dominique" The Singing Nuns