Eddie Murphy
He's finally back! One of SNL's most beloved stars returns to celebrate with girlfriend Paige Butcher
Bill Hader
Stefon is in the house!
Hilaria Baldwin & Alec Baldwin
A pregnancy won't stop the yoga enthusiast from supporting her man on the red carpet.
Olivia Wilde & Jason Sudeikis
The Hollywood couple (and new parents) glow while visiting Studio 8 in Rockeller Center.
Michael Douglas & Catherine Zeta-Jones
It's date night on Sunday night for the Hollywood A-listers.
Kerry Washington
No Scandal here! The actress simply glows in her Adam Lippes dress.
Bradley Cooper & Gloria Campano
What better date to bring to this anniversary than your own mother? Good move, Bradley!
Taylor Swift
After making a splash as host for SNL, the "Shake It Off" singer couldn't pass on attending the big celebration. Plus, she looks super cute in an Azzaro dress, Jimmy Coo shoes and Lorraine Schwartz jewelry.
Amy Poehler
Shall we bow down for one of SNL's greatest comedians to ever step foot in Studio 8? By the way, nice BCBGMAXAZRIA dress, girl!
Jim Carrey
Way to make an entrance! The actor works some bright purple shoes before enjoying the anniversary.
Melissa McCarthy
After hosting the NBC series three times, the Bridesmaid star couldn't turn down the chance to attend the big party.
Jimmy Fallon & Justin Timberlake
Talk about a dynamic duo! The late-night host and lead singer of 'N Sync step onto the red carpet before delivering a hilarious opening monologue.
Kristen Wiig
The genius mind behind Nancy Grace, Kathie Lee Gifford and Target Lady returns to Saturday Night Live, sporting a Max Azria Atelier gown.
Tina Fey
One of our most beloved "Weekend Update" anchors returns wearing a little black dress.
Sarah Palin
You betcha the famous politican is in attendance for the big anniversary.
Fred Armisen
The man behind President Barack Obama and Prince gets ready to serve up more LOL moments.
Whoopi Goldberg
You didn't think the outspoken host of The View would miss this show, right?
Sigourney Weaver
The Avatar star gives a giant thumbs up before participating in the celebrations.
Blondie
One way or another, the "Call Me" singer knew she had to make it to the Big Apple for such a milestone moment.
Adam Sandler & Jackie Sandler
Best Valentine's Day present ever? The actor scores a plus one for his wife!
Will Ferrell
How can you not be reminded of the Cow Bell sketch when seeing this funny guy?!
Natasha Lyonne
Fred Armisen's rumored girlfriend stuns in a revealing dress.