Pat Benatar Good Genes or Good Docs?

6/20/2010 4:12 AM PDT

Pat Benatar: Good Genes or Good Docs?

Pat Benatar is a real heartbreaker.


Here's the 26-year-old back in 1979 (left) -- and 31 years later, the 57-year-old at an event in New Jersey on Tuesday (right).

Invincible.