Josh Gad and ''Elsa'' Photo

From: Photo Flash: Josh Gad Makes Appearance at FROZEN Sing-Along

'Frozen' audiences were invited to join the act--literally--this past weekend as more than 2000 theaters nationwide introduced an all-new sing-a-long version of Disney's Oscar�®-nominated, Golden Globe�®-winning big-screen adventure film. Josh Gad, who voices the character Olaf, surprised audiences at the Sing-A-Long Screening this Sunday at the El Capitan Theater in Hollywood. Check out photos from the festivities below!