Ed Gordon pays tribute to late keyboardist Billy Preston, who died Tuesday at age 59 after a long battle with kidney failure. The Grammy-winning songwriter was once dubbed the "fifth Beatle" and ...

Sir PAUL MCCARTNEY (Musician): (Singing) When I find myself in times of trouble, Mother Mary comes to me, speaking words of wisdom. Let it be. ED GORDON, host: The rhythm behind this famous Beatles ...