They're glamorous, multi-talented, beautiful, powerful women who are adored by millions, but Mariah Carey, Beyonce, Jennifer Lopez and Gwen Stefani have something else in common: they're all moms.  In fact, they've just made Working Mother magazine's list of the 50 Most Powerful Moms of 2013.

Beyonce is ranked #5 on the magazine's list.  The mother of one-year-old Blue Ivy is "arguably the hardest-working mom in show biz," writes the magazine, and details everything that Bey has done since giving birth: singing for the president, performing at the Super Bowl, releasing a documentary, kicking off a world tour and signing a $50 million endorsement deal with Pepsi.  The magazine also refers to Beyonce as releasing "a new album, Mrs. Carter," but so far that hasn't happened.  Oops.

In at #10 is Mariah, the mother of two-year-old twins Monroe and Moroccan, or as her fans know them, "dem babies."  The magazine praises Mariah for her burgeoning fragrance empire, as well as for her incredible record sales and her reported $18 million paycheck for American Idol.

Ex-American Idol judge J-Lo is #31 on the list.  The mother of five-year-old twins Max and Emme is praised for being a singer, actress, dancer, producer and fashion mogul, as well as for her charity work to bring greater medical access to mothers in the developing world.

Gwen is included on the list at #48.  Mother to 6-year-old Kingston and 4-year-old Zuma, Gwen balances taking care of her kids with her jobs as frontwoman of No Doubt, solo artist and fashion designer and mogul.  The magazine notes that last year, Gwen toldVogue, "I am a mother.  And if you don’t do it right, there are serious consequences.”

Visit to see the full list, which also includes Angelina Jolie, Tina Fey, Jessica Simpson and Katie Couric.