Happy Birthday, Zac Efron!

One of our favorite Hollywood heart-throbs turns 23 today.  Happy Birthday, Zac Efron!

Right now the High School Musical star is in Lousiana, working on the set of "The Lucky One", a movie based on the Nicholas Sparks novel.

We wonder how the Charlie St. Cloud cutie will spend his evening.  Maybe a quiet dinner with family and friends, considering long-time girlfriend and former co-star Vanessa Hudgens is filming in Hawaii.