Tate McRae is also locked in to perform a week prior.
The former Beatle closed out the three-hour event with a historic nod to one of the most celebrated albums in rock history.
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.
"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.
Celebrate 50 seasons of Saturday Night Live with new TV specials.
We count down our favorites, from Adam Sandler's 'Opera Man" to Eddie Murphy's "Celebrity Hot Tub Party" in run-up to the Feb. 16 all-star primetime special on NBC.
Featuring memorable show introductions from Taylor Swift, Ariana Grande and more.
