The singer muscles her way through London after a visit to the gym. Plus: Reese & Jake, Jennifer Lopez, Gwen Stefani and more
Credit: Brian Prahl / Splash
Published: Monday Mar 31, 2008 | 04:00 PM EDT
More from PEOPLE
- D.C. Mansion Murder Suspect's Father: 'We Hope Whoever Committed These Crimes Will Suffer the Consequences'
- Read the Cover Story: The Duggars' Dark Secrets
- Jenny Lewis's Cheeky New Video References Everything from Troop Beverly Hills to Golden Girls: Watch!
- Celebrity Trainer Harley Pasternak: The Absolute Best Foods for You
- Woah! These Pancakes Look Exactly Like The Avengers