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
- How Jessica Alba Gets Her Kids to Behave (Hint: It Involves Makeup!)
- Read the Cover Story: At Home with Donald Trump and Family!
- Homeland's Most Shocking Deaths: Prepare to Make a Carrie Mathison Cry Face
- The Squad's All Here: Keeping Up with Taylor Swift's Epic Tour Cameos
- Why Is Kate Winslet So Excited to Turn 40?