If you could bring back one great artist that has

Picking one artist would be far too difficult. So, please pardon my short and very incomplete list:
Aretha Franklin
Otis Redding
Elvis Presley
John Denver
Buddy Holly
Michael Jackson
Richie Valens
Stevie Ray Vaughn
Waylon Jennings
Buddy Rich
Miles Davis
John Entwistle &
Keith Moon

Ricky Nelson, George Harrison, Elvis, Buddy Holly. 

... ONE OF THE GREATEST MALE VOICES (and a tremendously creative individual): NAT KING COLE

Lemmy Kilmister of MOTORHEAD! "We are NOT Metal, We ARE Rock-n-Roll"!

I would love to hear new music again from Tom Petty and Freddie Mercury two legends who wrote and performed some wonderful music. I have built my system around their music it sounds amazing.