Lady Gaga arrived in an egg
Christina Aguilera's live performance
Nicki Minaj in a custom Givenchy jumpsuit
Rihanna in Jean Paul Gaultier Haute Couture and Christian Louboutin shoes
Katy Perry in Armani Prive
Ciara in Emilio Pucci and Givenchy shoes
Jennifer Hudson in Versace and Christian Louboutin shoes
Jordin Sparks
Selena Gomez in J Mendel and Brian Atwood shoes
Miley Cyrus in a Roberto Cavalli sequined dress
Jennifer Lopez in an Emilio Pucci mini and Louboutins
Heidi Klum in a gold Julien Macdonald gown
Nicole Kidman in Jean Paul Gaultier
Eva Longoria in an Ashi Studio dress
Kim Kardashian in a Kaufmanfranco dress and Christian Louboutin shoes
Kelly Osbourne in a lilac one-shoulder Tadashi Shoji dress with Alexander McQueen peep toes
Selma Blair in Lanvin
Glee girl Lea Michele in an Emilio Pucci dress
Glee star Dianna Agron in Vivienne Westwood
Glee's Naya Rivera
Nicole "Snooki" Polizzi
LeAnn Rimes in Reem Acra
Julianne Hough in Catherine Malandrino and Jimmy Choo shoes
Natasha Bedingfield
Florence Welch in a swan-themed Givenchy Haute Couture dress
Country singer Miranda Lambert
Jewel in a yellow Pamella Roland gown
Justin Bieber
Adam Levine
The Simth Family
xoxo Elina
