The singer muscles her way through London after a visit to the gym. Plus: Reese & Jake, Jennifer Lopez, Gwen Stefani and more
Published: Monday Mar 31, 2008 | 04:00 PM EDT
More from PEOPLE
- Defiant Valerie Harper Gives Update on Health: 'I Am Not, Nor Have I Been, in a Coma'
- The Style Top 5: Reese Witherspoon Channels Elle Woods,
Steal the Styles from Wet Hot American Summer and More
- Is Scott Disick Regretting Split with Kourtney Kardashian in New Photo: 'The Grass Isn't Always Greener'
- PHOTO: Britney Spears Does a Perfect Handstand: 'The World Looks Better Upside Down'
- Ashlee Simpson and Evan Ross Reveal Their Daughter's Unique Name – Find Out What It Is!