The former Beatle closed out the three-hour event with a historic nod to one of the most celebrated albums in rock history.
Lil Wayne ran through five cuts off his Tha Carter series of albums for his SNL50: The Anniversary Special appearance.
The four-season Saturday Night Live castmember paid tribute to his late castmates Chris Farley, Phil Hartman & more.
O'Connor famously tore up a photo of then-Pope John Paul II to end her 1992 Saturday Night Live performance.
The chaos of Kelsey and Matt's marriage continued on the 50th anniversary of 'SNL.'
Simon played the Simon & Garfunkel duet with George Harrison on 'SNL' in 1976.
"I can't believe what I'm watching," the British singer wrote.
NBC's celebration of its long-running sketch show brought back iconic musical guests and past cast members for an unforgettable night.
Live from New York, it's the talent behind the curtain.
The MMA middleweight bout livestreams on Saturday (Feb. 15).