The Hannah Montana star kicks off the celebration early on the The Ellen DeGeneres Show. Plus: Beyoncé, Posh & Eva and more

FLIGHT PLAN

Yes, he's got baggage – carry-on baggage! An incognito Zac Efron – who recently traveled Down Under to promote High School Musical 3: Senior Year in Australia – is all about comfort as he arrives for a flight Monday at Los Angeles International Airport.

Check out more stars and their airport style!