George Jackson, who wrote...

... “One Bad Apple” and “Old Time Rock and Roll,”died at age 68.

"One Bad Apple" was the first hit for the Osmonds back in 1970 and arguably "made" the group. (It was originally intended for the Jackson Five, but according to Donny Osmond, Michael Jackson later told him that they almost recorded the song first, but chose to record "ABC" instead. Oh, well.)

"Old Time Rock and Roll" was made famous in this scene from Risky Business, the 1983 movie that arguably "made" Tom Cruise.

Not bad for one writer.