Chen has been a co-anchor of "The Early Show" since 2002. She juggles her daytime gig with the CBS reality show contest "Big Brother," which she has hosted since 2000.
In 2004, Chen married CBS president Les Moonves.
Talk queen Oprah Winfrey topped the listing. Others featured on the list include Rachel Ray, Tyra Banks, Ellen DeGeneres, Rachel Maddow and Martha Stewart.