Taylor Swift
The singer showcases a dark, mysterious and vampy look on the red carpet.
Rita Ora
The "Black Widow" singer sparkles in a cleavage-baring gown.
Charli XCX
From the front, the singer's dress looks pretty demure.
Charli XCX
From the side, however...
Orlando Bloom
The Lord of the Rings and The Hobbit star finds a unique way of incorporating denim into his outfit.
Sam Smith
The crooner takes a page from 2015 Oscars men's fashion and goes for the blue.
Nick Jonas
Now that's a boutonniere!
Mel C & Emma Bunton
It's a Spice Girls mini-reunion!
FKA Twigs
The singer and girlfriend of Robert Pattinson opts for a strappy style...
Cara Delvingne
Hats off to the supermodel for bringing the fierceness!
Ed Sheeran
Taylor Swift's BFF gives you the stare-down.
Karlie Kloss
The supermodel shows skin in an unconventional way.
Taylor Swift
For her performance, the singer changed out of her red and black gown into something easier to move in...
Taylor Swift
All that glitters! The Grammy winner performs "Blank Space" for the famous crowd.
Ellie Goulding
The British singer opts for a bridal look.
Noomi Rapace
The original The Girl With the Dragon Tattoo star looks elegant in black lace.
Kim Kardashian & Ant & Dec
The reality star takes a selfie on stage with the hosts.
Taylor Swift
The Grammy winner gives a glittery performance of "Blank Space."
Madonna
The Queen of Pop took a tumble while performing her newest song, "Living for Love."
Taylor Swift & Kim Kardashian
The two dance in the audience together!
Ed Sheeran
Sheeran's performance inside the O2 Arena looks red hot!
Kim Kardashian
The E! star snaps a selfie with hosts Ant and Dec.
Sam Smith
The crooner performs his debut single "Lay Me Down."
Adam Lambert
He is here for your entertainment.