Actress Katie Holmes, who knows a thing or two about life as a busy young mother, attended the April 5 performance of Mamma Mia! with ever-fashionable daughter Suri Cruise. No stranger to Broadway, Holmes appeared in the 2008 revival of Arthur Miller’s All My Sons. Holmes is quite the “Dancing Queen” herself, having performed a Judy Garland-themed segment for Fox’s So You Think You Can Dance last summer. Check out Katie and Suri having the time of their lives backstage at the Winter Garden Theatre!