Vanessa Hudgens and Zac Efron
06/28/2010 AT 11:45 AM EDT
Meanwhile, in L.A., Zac Efron
and his girlfriend Vanessa Hudgens
feted the actress's father on his birthday at Morton's the Steakhouse in Bubank, Calif. The group shared lots of laughs over their dinner, which ended with a birthday cake and a "Happy Birthday" serenade. According to a source, "the group couldn't have been nicer."