Pictures Celebrities With Abs Of Steel July 27, 2011 / 1:01 PM EDT / CBS News (Photo by Gareth Cattermole/Getty Images) Adam Levine (credit: Christopher Polk /Getty Images) Lady Gaga (credit: TOSHIFUMI KITAMURA/AFP/Getty Images) Michelle Rodriguez (credit: Gareth Cattermole/Getty Images) Nelly (credit: Kevin Winter/Getty Images) Rihanna (credit: Kevin Winter/Getty Images Entertainment) Maksim Chmerkovskiy (credit: Andrew H. Walker/Getty Images Entertainment ) David Beckham (Photo by Victor Decolongon/Getty Images) Carmen Electra (Photo by Amanda Edwards/Getty Images) Kristin Cavallari (Photo by Frazer Harrison/Getty Images for IMG) Jennifer Lopez (credit: Alberto E. Rodriguez/Getty Images Entertainment) Janet Jackson (Kevin Winter /Getty Images Entertainment) LL Cool J (Photo by Scott Gries/Getty Images)