Seeing as our invite to Zac Efron's birthday party must've got lost in the post YET AGAIN this year, here's our very own mini-celebration of the all-singing, all-dancing HSM hunk...

Yes, that's right, on 18 October 2009 the gorgeous Zac Efron hits the tender age of 22. Happy birthday Zac!

And what better way to celebrate than a fan-made vid of some of Zac's hottest pics ever? Enjoy...

Little Zachary David Alexander Efron came into the world on 18 October 1987 in San Luis Obispo, California, USA. Soon he'd grow up to become this gorgeous boy specimen...

Lush. But let's not forget about his acting talents, too. How about some hilarious HSM3 bloopers? Here you go…

LOL! Leave your birthday messages for Zac below!