Since today is the official day, Popstar! Magazine just posted some more footage of stars at the recent 16th birthday party for Miley Cyrus at Disneyland, which included ‘High School Musical’ star KayCee Stroh, funnyman Steve Carrell, ‘Camp Rock’ star Demi Lovato, Cole and Dylan Sprouse of ‘The Suite Life of Zack & Cody’, the ‘Hannah Montana’ star herself, and plenty of screaming tweens. Watch the clip via YouTube below.