Underwood hits the high notes at a country music festival in London. Plus: Zac Efron, the Garner-Afflecks, Fergie & Josh Duhamel and more
Credit: Sellebrity RICK/Splash News Online
Published: Monday Mar 18, 2013 | 05:00 PM EDT
More from PEOPLE
- Taylor Swift and Tom Hiddleston Enjoy Romantic Dinner Date in L.A. – Get the Details!
- Read the Cover Story: George Turns 3: The Preschool Prince!
- WATCH: Cagney & Lacey Reunite in Feel-Good, All-Star Singalong at the DNC