Duff performs her hit single on the Today show summer concert stage. Plus: Britney Spears, Tom Cruise and more
Credit: Splash News Online
Updated: Friday Jun 29, 2007 | 06:00 AM EDT
More from PEOPLE
- Kim Kardashian West Gets Pouty Mid-Air While Taking a Selfie in an Airplane Bathroom
- Read the Cover Story: Growing Up Kennedy!
Exclusive Family Photos from White House Nanny
- Beach Break? Shop These Amazing July 4th Sales!
- The Very Best Celebrity Food Photos of the Week
- The Blue Lagoon Turns 35! Christopher Atkins Returns to Turtle Island, Says a 'Flood of Memories Came Back'