Tue, 20 Nov 2012 07:17:44 GMT | By Sean Plummer
The 2012 American Music Awards: Best and worst moments

Most exciting performance

Nicki Minaj and Justin Bieber (© Kevin Winter, Getty Images)
  • P!nk (© Alexandra Wyman, Getty Images)
  • Carly Rae Jepsen (© Kevin Winter, Getty Images)
  • Nicki Minaj and Justin Bieber (© Kevin Winter, Getty Images)
  • David Guetta (© Thomas Peter, Reuters)
  • Christina Aguilera (© Danny Moloshok, Reuters)
  • Pitbull (© Danny Moloshok, Reuters)
  • Justin Bieber, Jenny McCarthy (© Danny Moloshok, Reuters)
  • Carrie Underwood (© Danny Moloshok, Reuters)
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Justin Bieber established his performance cred (kind of) by performing a stripped-down version of 'As Long As You Love Me,' although I still don't think anyone should wear a baseball cap backwards, as he did. But then the Biebs rocked (popped?) the house with his 'Beauty and a Beat' guest Nicki Minaj. We're not quite sure if Minaj (this time decked out in black) actually used the word 'Selener' in her performance (referencing Bieber's ex Selena Gomez) but it sounded like it. Kudos, if so, for maintaining the integrity of the song.