Whom did Glenn write songs for, aside from his own projects?
Katy Perry and Lady Gaga
Frank Sinatra and Dean Martin
Johnny Cash and Roy Orbison
David Bowie and Mick Jagger
Answer
Glenn Campbell wrote songs for Johnny Cash and Roy Orbison, in addition to his own projects. For example, Campbell wrote "I Just Dropped In (To See What Condition My Condition Was In)" for Cash, and "Crying" for Orbison.
Unleashing the Darkness: The Ultimate Quiz on Glenn Danzig