The singer muscles her way through London after a visit to the gym. Plus: Reese & Jake, Jennifer Lopez, Gwen Stefani and more
Credit: Ray Nichols/Splash
Published: Monday Mar 31, 2008 | 04:00 PM EDT
More from PEOPLE
- 10 of Princess Diana's Best-Remembered PEOPLE Covers
- Read the Cover Story: The Gosselins 10 Years Later: 'So Much Has Changed'
- The Biggest Celeb Real Estate News of the Month: Bernie Buys Big, Hugh Hefner Sells and More!
- Leslie Jones Lost 40 Lbs. This Year with Kate McKinnon's Help: 'She Would Make Me Walk to Dinner!'
- Mel Brooks Opens Up About the Death of His Dear Friend Gene Wilder: 'I'm Still Reeling'