United Kingdom, Feb. 17 -- The stars of 'Saturday Night Live' reunited and brought in the biggest names Hollywood for the sketch show's 50th anniversary special.

The 'SNL50: The Anniversary Celebration' - a three-and-a-half-hour comedy marathon- aired on Sunday night (16.02.25) and kicked off with a performance by Paul Simon and Sabrina Carpenter singing 'Homeward Bound' with the pop star joking she "was not born" when the musician first shared the song on 'SNL' back in 1976 before adding: "And neither were my parents".

The opening monologue came from Steve Martin, who described himself as the show's newest "diversity hire".

He was later joined by fellow funnyman John Mulaney, who looked at the studio audience and declared: "I see some...