The pop star rocks the mic in L.A. during rehearsals for Sunday's American Music Awards. Plus: Heidi Klum, Matthew & Levi, Rob & Taylor and more
Credit: PA Photos/Landov
Published: Friday Nov 20, 2009 | 05:20 PM EST
More from PEOPLE
- Twitter Wants Amy Schumer to Take Over The Bachelorette
- Read the Cover Story – Tess Holliday: The World's First Size 22 Supermodel!
- FROM EW: Matchbox Twenty's Rob Thomas Talks Upcoming Solo Album and New Single, 'Trust You'
- 'Wolverine' Killer Found Dead in the Woods After Slaughtering His Family
- Kaitlyn Bristowe's Bachelorette Blog: The Date Moment That Was 'My Worst Nightmare'