Damn. 

Rick Derringer, who had a hit with 'Hang On Sloopy' and produced 'Weird Al,' dies at 77
Guitarist and singer Rick Derringer, who shot to fame at 17 when his band The McCoys recorded “Hang On Sloopy,” had a hit with “Rock and Roll, Hoochie Koo” and earned a Grammy Award for producing “Weird Al" Yankovic's debut album, has died. He was 77.