Spears is all suited up at the last rehearsal before her Vegas show opening. Plus: Joe Manganiello, Kim & Kanye & more!
Published: Friday Dec 27, 2013 | 07:00 PM EST
More from PEOPLE
- How Miley Cyrus Has Given Up Partying After Reuniting with Love Liam Hemsworth
- Read the Cover Story: The Final Five: Their Amazing Journey!
- Kate Gosselin's Tough Decision: Why Her Son Is Away Getting Help
- Kate Gosselin and Her 8: 10 Years Later – I Wish I Hadn't Melted Down as Much
- Why I'm Marrying My Fiancé After He Kissed Another Woman: Countess Luann de Lesseps Tells All