It's been 10 years since Hilary Duff rose to fame as the star of Disney's "Lizzie McGuire." On Aug. 14, the former teen pop sensation, now 23, announced that she and her husband are expecting a baby. From Britney Spears to Reese Witherspoon, see other celebs who became pregnant before age 25.
Hilary Duff made a swift transition from teen star to committed wife last year when she married Canadian hockey player Mike Comrie. Her Lizzie McGuire days have long been a distant memory, but the news that the singer-actress is pregnant is still a bit hard to fathom. Duff posted the announcement in conjunction with her first anniversary on her official website. "We are extremely happy and ready to start this new chapter of our lives," she wrote.