Attending a Hollywood costume party on Saturday, the singer-actress, 25, donned Portman's already-iconic "Swan Queen" ballerina costume. As Nina in the 2010 smash, 30-year-old Portman was a more intense, R-rated version of Michele's Rachel Barry character on Glee -- a disturbingly ambitious performer psychotically obsessed with nabbing the lead roles (the good "Swan Queen" and the evil "Black Swan") in Swan Lake.
But Michele was pleased as punch following her Saturday masquerade out. "What a fun party last night!" she tweeted. "Got to see my cast all dress up as Rugrats! It was awesome! Everyone's costumes were amazing!"