Hilary Duff and Hubby Have a Parents' Night Out in Sin City
05/30/2012 AT 05:55 AM EDT
Duff "seemed very excited to be out with friends" and was "in a great mood," an onlooker tells PEOPLE. "There was lots of laughing and smiling." Nearby, Benicio del Toro (also a new parent) and actor Lukas Haas partied in another VIP booth.
– Melody Chiu and Jennifer Garcia