Taylor Swift, Emma Stone Shine in Flirty Frocks at SNL 40th Anniversary Celebration, Plus See More Stars on the Red Carpet

Taylor Swift, Emma Stone, Kerry Washington, and more stars turned up to celebrate the Saturday Night Live 40th Anniversary on Sunday, Feb. 15. Credit: Larry Busacca/Getty Images; D Dipasupil/FilmMagic

Now this is a star-studded affair!  

Saturday Night Live celebrated its 40th anniversary on Sunday, Feb. 15, in New York City, and Hollywood's A-list elite turned up despite the bitter cold to toast the beloved NBC sketch comedy series' well-deserved milestone. 

Taylor Swift, who participated in "The Californians" bit along with stars including Kerry Washington and Kristen Wiig, stuck to her usual uniform of minidresses on the red carpet to highlight her supermodel legs. The "Style" singer, 25, sported a pale blue thigh-grazing Azzaro frock with stomach cutouts and Jimmy Choo sandals. Swift accessorized with Lorraine Schwartz jewelry. 

Emma Stone, who made a brief cameo during SNL's Weekend Update segment, opted for a style that screamed glamour with a black Dior silk and cashmere knitted dress, splashed with navy sequins. The Birdman actress, 26, teamed her look with black pointy-toe Christian Louboutin pumps. 

Fresh off her Fifty Shades of Grey box office-winning high, Dakota Johnson looked sultry in a silver sequined Sonia Rykiel minidress paired with a cozy fur jacket and Gianvito Rossi sandals. 

Washington handled the red carpet in an Olivia Pope-esque white tuxedo dress by Adam Lippes, revealing a peak of her black lace bra. The Scandal actress, 38, put her toned legs on display in Jimmy Choo pumps. 

Representing for Team SNL, Wiig, 41, pulled out all the stops in a black Max Azria Atelier satin gown that featured a plunging neckline — making for one of the more glamorous appearances of the night. 

Melissa McCarthy, who donned a pair of geek-chic glasses and a plaid oversized blazer to pay homage to the late Chris Farley in the Weekend Update sketch, looked elegant upon arrival in a chic black turtleneck, sequin skirt, and Carole Shashona jewelry. 

Be a trendsetter! Sign up now for the Us Weekly Style & Beauty newsletter to get celeb fashion, beauty tips, and more delivered directly to your inbox.