Crossword puzzle clue "but for him regular rock and roll was"

"But for him, regular rock and roll was ___ ..."

Rocker Case who tweeted "If a dude called me a 'cougar' I'd be more likely to kill him bare-handed and shit him out in front of his parents than fuck him"

Rock-and-roll legend and singer of "Roll Over Beethoven," who died on 3/18/17: 2 wds.

McCartney inducted him into the Rock and Roll Hall of Fame in 2015

Rock and Roll Hall of Fame trio featuring members MCA, Ad-Rock, and Mike D: 2 wds.

John Belushi's reads "I may be gone, but Rock and Roll lives on"

"He's a complicated man/but no one understands him/but his woman"

"Rock Around the Clock" singer called "the King of Rock and Roll"