Katy Perry
The "Roar" singer shows some leg in a Versace dress.
Pharrell Williams & Helen Lasichanh
After wearing a green hat to the Kids' Choice Awards earlier in the day, the singer dons a black number for a date night with his equally as fashion forward wife.
Dianna Agron
The Glee star rocks in an embroidered asymetrical Louis Vuitton dress and leather boots.
Ryan Seacrest
The American Idol host shines in a classic tux.
Rachel Zoe
The mommy-of-two is chic in Chanel.
Isabel Lucas
The aussie Transformers beauty glows in Louis Vuitton.
Tim Allen & Owen Wilson
The actors are all smiles inside the gala.
Chloe Sevigny
The actress accessorizes her Louis Vuitton moleskin knit zipped cardigan dress with a clutch from the fashion house's latest Fall-Winter collection.
Jeremy Scott
Leave it to the fabulous Moschino designer to go shirtless for the gala. Gotta love the zipper tie.
Tracee Ellis Ross
The funny lady actress wears a yellow dress of her own design to the gala, which also included a performance by her music legend mom, Diana Ross.
Jane Fonda
The acting legend never fails to impress.
MORE PHOTOS: Check out which stars were at the Kids' Choice Awards earlier in the day