Check out before and after photos of Kate Middleton, Kim Kardashian, Halle Berry and other stars' hottest post-baby bodies
The Victoria's Secret model -- who married Kings of Leon's Caleb Followill in May 2011 and welcomed daughter Dixie Pearl in June 2012 -- turned to Pilates to slim down. "It really changes the way my body feels," Aldridge tells Shape. "And after I finish, it's like I've had a massage."
Credit: Jason Merritt/Getty; Randy Brooke/WireImage.com