Zac Needs A Belt

Zac Efron leaves his apartment for a check-up appointment at the Riverside Medical Building in Studio City, Calif on Sunday. (He was recently hospitalized due to appendicitis.)

On his way into the building, Zac dropped his car keys and gave photogs a great view of his blue boxer briefs.

The 20-year-old High School Musical hottie was later seen picking up a hot drink at Coffee Bean & Tea Leaf and then a smoothie from Jamba Juice. Zac whipped out cash from his Louis Vuitton wallet

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