1/23
LUCY NICHOLSON/AFP/Getty Images
Britney Spears & Justin Timberlake
In double denim.
2/23
ABC/RICHARD HARBAUGH
Nicki Minaj
In Monique Lhuillier.
3/23
Larry Busacca/AMA2013/Getty Images for DCP
Lady Gaga
In Versace.
4/23
Jason Merritt/Getty Images
Jennifer Lopez
In Reem Acra.
5/23
Jason Merritt/Getty Images
Bleona Qereti
In Shahla Dorriz.
6/23
Jason Merritt/Getty Images
Rita Ora
In Zac Posen.
7/23
Rick Rowell/ABC
Selena Gomez
In Armani.
8/23
Rick Rowell/ABC
Katy Perry
In Vivienne Westwood.
9/23
Jason Merritt/Getty Images
Taylor Swift
In Michael Kors.
10/23
Jason Merritt/Getty Images
Christina Aguilera
In Maria Lucia Hohan.
11/23
Jason Kempin/Getty Images
Naya Rivera
In Michael Kors.
12/23
Jason Merritt/Getty Images
Kate Beckinsale
In KaufmanFranco.
13/23
Jason Merritt/Getty Images for DCP
Rihanna
In Elie Saab Haute Couture.
14/23
Ron Galella, Ltd./WireImage
Mariah Carey
In a disco-esque mini.
15/23
ABC/RICK ROWELL
Ke$ha
In a dress made of VHS tapes.
16/23
Jason Merritt/Getty Images
Jessie J
In Prada.
17/23
Jason Merritt/Getty Images
Christina Aguilera
In Pamella Roland.
18/23
Jason Merritt/Getty Images
Taylor Swift
In Zuhair Murad.
19/23
Kevin Mazur/AMA2013/WireImage
Jennifer Lopez
In Zuhair Murad Couture
20/23
ABC/RICK ROWELL
Miley Cyrus
In Marchesa.
21/23
Jason Merritt/Getty Images
Heidi Klum
In Alexandre Vauthier.
22/23
Frazer Harrison/AMA2014/Getty Images for DCP
Kendall Jenner, Kylie Jenner, and Khloe Kardashian
Kendall is in Yigal Azrouël, Kylie is in Alexandre Vauthier, and Khloe is in Versus Versace.
23/23
Jason Merritt/Getty Images
Pink
In Catherine Deane.