1 / 14

Neil Patrick Harris, David Burtka, Harper Grace Burtka-Harris, Gideon Scott Burtka-Harris

Neil Patrick Harris and David Burtka with twins Harper Grace Burtka-Harris, left, and Gideon Scott Burtka-Harris, right, arrive to the world premiere of "The Smurfs 2" at the Regency Village Theatre on Sunday, July 28, 2013 in Los Angeles. (Photo by John Shearer/Invision/AP)

'Smurfs 2' Premiere

Stars attend the premiere of Columbia Pictures' 'Smurfs 2' at Regency Village Theatre on July 28, 2013 in Los Angeles, California.