The Anniversary Celebration,' which featured iconic sketches, musical performances and appearances from former cast members.

Blake Lively and Ryan Reynolds snapped a photo with comedian Chevy Chase during the 'SNL50' weekend festivities. Chase shared ...

Andy Samberg had an awkward encounter with one of the Backstreet Boys at SNL50 — but he knows it ain't nothin' but a mistake.

To the surprise of many, the 70-year-old comedian started singing the lyrics along with Littrell — and yes, Seinfeld even appeared ... Bad Bunny, Eddie Vedder, and the B-52s.

He runs some numbers; no one worked with Eddie more than he did ... It took him 20 years until he finally hit with Seinfeld. Now he’s bigger than anybody—and some of us are just working ...

Other stars and Hollywood bigwigs at the “SNL” jam also included Tom Hanks and Rita Wilson, Jerry Seinfeld, Seth Rogen, Chris Pine, J.J. Abrams, Edward Norton, Paul Rudd, Emily Ratajkowski ...

Jerry Seinfeld, Lester Holt, Keegan-Michael Key, and Billy Crystal. SNL alumni such as Tina Fey, Amy Poehler, Eddie Murphy, Molly Shannon, Kristen Wiig, Adam Sandler, Will Ferrell, Maya Rudolph, Pete ...