The rumours about the birth of Natalie Portman's baby boy started making rounds after the actress' friends and celebrities congratulated her on micro-blogging site. Ellen DeGeneres tweeted, “I"m so happy for my dance protegee Natalie Portman and her new baby boy! Congratulations!" Lindsay Lohan wrote, “congrats to #natalieportman for her beautiful baby boy!"
Natalie Portman met choreographer Benjamin Millepied in early 2009 on the set of her film Black Swan, for which he acted as choreographer. Portman's representative announced her engagement with him on December 27, 2010. Meanwhile, he also revealed that their first baby was due in the summer of 2011.