Hamm gets his motor running on the L.A. set of Mad Men. Plus: Robert Pattinson, Nick Jonas, Ashton & Demi and more
Published: Thursday May 06, 2010 | 05:00 PM EDT
More from PEOPLE
- Olympic Swimmer Matt Grevers Has His Eye on the Prize for Rio: Winning Is 'the Best Feeling in the World'
- Read the Cover Story: Matthew McConaughey: Love, Family & What I've Learned
- 7 Summer-Ready Crochet Styles to Buy Right Now
- Katherine Heigl Says Her First Pregnancy Is 'Unexpected But Thrilling': I Didn't Know If It Was 'in the Cards for Us'
- WATCH: Adele Burps in Fan's Face at Glastonbury – and Blames It on a 'Dirty Burger'