New Celebrity Moms: Stars Celebrating Mother's Day (PHOTOS)

Happy Mother's Day to all the moms out there! While this day is special for all mothers, we can think of quite a few celebrities who are celebrating their very first Mother's Day this year.

From Marion Cotillard, whose little boy Marcel turns 1 year old later this month, to Charlize Theron, who adopted her son Jackson this year, many stars will have an extra-sweet Mother's Day this year, and in the years to come.

New mom Jessica Simpson, who welcomed daughter Maxwell on May 1, spoke out for the first time this week about her darling daughter, writing, "I am so in love with baby Maxwell. I want to cry every time I look at her. Motherhood is by far the best thing I've ever experienced."