Vanessa Lachey and More Celeb Moms Battle the Baby Bulge

intro: If you didn't know, you'd never believe that Vanessa Lachey had a baby four weeks ago. This week, the new mom stepped out for the first time since giving birth to son Camden John , whose dad is former 98 Degrees frontman Nick Lachey. The glowing 31-year-old looked like she was back to her pre-baby figure as she headed out to cheer on brother-in-law Drew Lachey in "Dancing With the Stars: All Stars." Lachey dropped her pregnancy pounds incredibly fast, but that's not true for all moms...Full Story