Among the dozens of A-listers giving birth in 2011? Natalie Portman and Black Swan choreographer Benjamin Millepied welcomed son Aleph (Hebrew for "oneness of God") in June. Mariah Carey and Nick Cannon welcomed "dem babies," twins Moroccan and Monroe, on April 30, their second wedding anniversary. Victoria and David Beckham welcomed their first daughter -- and fourth child -- Harper Seven in July.