03/14/2011 at 01:00 AM EDT
Regarding Oscar night, Berry gushes,"I love seeing everyone's interpretation of glamour."
in Chanel Haute Couture
Joined by BFF Busy Philipps, Williams says of her iridescent number, "It's Chanel, so I feel lucky." Philipps adds, "She looks so unbelievable in it."
in Calvin Klein Collection
The actress and country singer revealed she hadn't slept in a week in anticipation of her Oscar performance.
in Tony Ward Couture
"I'm so excited I really can't sit still for a second," tweeted Osbourne as she got glam for her E! red carpet fashion coverage.
in Atelier Versace Collection
Biel skipped the big show but partied afterward with longtime beau Justin Timberlake
(who brought Mom to the main event) at the Vanity Fair soirée.
in Gucci Premiére
"It's just exciting to be here," admits Swank in her hand-stitched, hand-dyed gown trimmed with ostrich feathers.