1/59
Jordan Strauss/Invision/AP
Taylor Swift
In Gucci Premiere
2/59
Jason Merritt/Getty Images
Katy Perry
In Valentino
3/59
Jason Merritt/Getty Images
Madonna & David
In Ralph Lauren Collection
4/59
Jordan Strauss/Invision/AP
Ciara
In Emilio Pucci
5/59
Kevin Mazur/WireImage
Pharrell Williams
And his Vivienne Westwood hat!
6/59
Jason Merritt/Getty Images
Pink
In Johanna Johnson
7/59
Jason Merritt/Getty Images
Miranda Lambert & Blake Shelton
In Pamella Roland (Lambert)
8/59
Steve Granitz/WireImage
Alicia Keys
In Armani Privé
9/59
Jason Merritt/Getty Images
Keith Urban
At Staples Center
10/59
Jordan Strauss/Invision/AP
Robin Thicke & Paula Patton
In Giorgio Armani (Thicke)
11/59
Jason Merritt/Getty Images
Kacey Musgraves
In Armani Privé and Forevermark Diamond bangles
12/59
Jason Merritt/Getty Images
Wiz Khalifa & Amber Rose
In Naeem Khan (Rose)
13/59
Jordan Strauss/Invision/AP
Ariana Grande
In Dolce & Gabbana
14/59
Jordan Strauss/Invision/AP
Ryan Lewis & Macklemore
At Staples Center
15/59
Jordan Strauss/Invision/AP
Chrissy Teigen
In Johanna Johnson
16/59
Jason Merritt/Getty Images
John Legend
In Gucci
17/59
Christopher Polk/Getty Images for NARAS
Colbie Caillat
In Ezra Santos
18/59
Jordan Strauss/Invision/AP
Rita Ora & Calvin Harris
in Lanvin (Ora) and Giorgio Armani (Harris)
19/59
Sipa via AP Images
Anna Kendrick
In Azzaro
20/59
Jason Merritt/Getty Images
Austin Mahone
In Sanctuary78
21/59
Steve Granitz/WireImage
David Burtka & Neil Patrick Harris
At Staples Center
22/59
Jordan Strauss/Invision/AP
Anna Faris
In Fitriani
23/59
Francis Specker/CBS
Ed Sheeran
In Gucci
24/59
Jason Merritt/Getty Images
Miguel
At Staples Center