Who is Zac Efron?

A question I had to ask myself. As I told my National Ledger editor, I may be a bit too old for celebrity profiles. But he is the hot new thing as the sequel to the hit movie High School Musical debuts this week, and if you’d like to know more about the Sun/Jupiter opposition that put him there take a look at an analysis of his relationship with his co-star Vanessa Hudgens.