It was a star-studded night for Saturday Night Live’s 40th anniversary special, which brought together old colleagues together with new talent for a tribute to the show after four decades on the air.

Jimmy Fallon and Justin Timberlake sang and danced in the cold open to kick off the show, working in catchphrases from famous skits performed throughout its long history, including Dan Akroyd’s “Jane you ignorant slut” and Alec Baldwin’s “Schweddy Balls,” according to Variety.

Also paying a visit during the cold open? Former cast member Rachael Dratch and Molly Shannon, and then legendary SNL cast member Steve Martin dropped in to deliver the show’s monologue, comparing the get-together to a high school reunion for a class that is “almost all white.” He paid tribute to castmates who had passed on, including John Belushi, Gilda Radner, and Jon Lovitz — the latter of whom looked up with surprise in the audience.

Tom Hanks later interrupted the monologue, contradicting Martin’s assertion that comedians have “dominated” the SNL stage, arguing that actors “bring to the show a legitimacy and nuance.” Alec Baldwin was next on stage asking why, when he had the hosting record, he didn’t get to deliver the monologue. Melissa McCarthy then showed up to represent female hosts, and Chris Rock popped in to remind him that he was both a castmember and a host. Then Peyton Manning, Miley Cyrus, and Billy Crystal showed up before Paul McCartney and Paul Simon interrupted everyone, asking “what about singers named ‘Paul'” — a very specific category, Martin noted.

After the Pauls performed a quick duet of “I’ve Just Seen a Face,” Martin kicked off the show.

From there, it was a parade of celebrities that included castmembers who had hit it big, former hosts ranging from actors to singers to athletes, and former writers like Larry David. The show featured clips from the many highlights of SNL’s past, and brought in some of the old performers to pay homage to popular sketches with new renditions, including Dan Akroyd’s “Bass-o-matic” and Will Ferrell’s “Celebrity Jeopardy.”