R.I.P. Beatle No. 5

George Martin, the legendary music producer o.k.a. the Fifth Beatle has died.

Martin was 90, and reportedly passed away peacefully in his home.

Paul McCartney, Ringo Starr, Sean Lennon, Stella McCartney, Quincy Jones, Linda Perry, Mark Ronson, Elton John, they are all among those remembering Martin today.

Martin was behind some of the most defining Beatles albums, including Revolver and Abbey Road.

Photo: VanityFair.com.