From Troy in High School Musical to Mike O'Donnell in 17 Again, to, well anything else he is in — including jeans and a tee, bball gear, a suit… you get the picture — Zac Efron is a fave on screen and off! Today, he celebrates his 22nd birthday! Happy Birthday, Zac!

Fun Facts About Zac!
-His secret collection? Zac spilled to J-14 that he collects Pez dispensers! He has over 100 of them — wow!
-Zac may have cracked us up in 17 Again, but he was working on his comedic skills way back when he was in an improv troop in high school called Destination Imagination. They won the world championship when he was only 15!
-When he was younger, kids used to tease Zac about the gap in his teeth! Aww!

Leave your birthday messages for Zac below!

Photo: Courtesy of New Line Cinema

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