Muhammad Ali and Martin Luther King Jr.

Bob Dylan, Neil Young and Eric Clapton

Marlon Brando, James Baldwin, Harry Belafonte, Charlton Heston, Joseph Mankiewicz , and Sidney Poitier discuss the Civil Rights Movement, on the same day as MLK’s “I have a dream” speech. August 28, 1963.

(Source: youtube.com)

John Steinbeck, Maurice Wilkins, James D. Watson and Francis Crick at the 1962 Nobel Prize Ceremony

(Source: Flickr / cshlarchives)

Steve McQueen, Paul Newman, Barbra Streisand, and Sidney Poitier, 1972 © Bettmann/Corbis.

Marlon Brando and Miriam Makeba, 1963

Sorry I have no idea. I believe it’s a closeup of a picture from the Life Magazine archives. Try Tineye.com

Jerry Seinfeld, Chris Rock, Ricky Gervais, and Louis CK discussing comedy

Pelé and Sylvester Stallone

(submitted by Billy)

Nancy Reagan and Mr. T

(submitted by kidrocket and rsethib)

Pee-Wee Herman and Regis Philbin

(submitted by aspiringhypocrite)

Micheal Jackson and Paul McCartney washin’ some dishes

GZA and Bill Murray

Barack Obama and George Clooney in the Oval Office

Michael Jackson and Freddie Mercury