Beyonce, Christina Aguilera Among "50 Most Powerful Moms"

(Undated) -- Beyonce and a number of entertainers are on this year's list of the "50 Most Powerful Moms." WorkingMother.com has included the mother of two-year-old Blue Ivy Carter on its annual list honoring "power moms" around the world. Also making the list is Christina Aguilera, who is expecting her second child later this year. Former Spice Girl and mother of four Victoria Beckham also made the cut. Other famous moms on the "Powerful Moms" list include "Scandal's" Kerry Washington and Shonda Rhimes, Tina Fey, Amy Poehler, Kim Kardashian, Salma Hayek, Sandra Bullock and Cate Blanchett.