Sure, the kids all love "We Belong," "Love Is a Battlefield," and "Hit Me with Your Best Shot," but for my money this is the best of Benatar. For those of you not familiar with the track, "Invincible" was the theme from the classic youth-in-revolt flick The Legend of Billie Jean, starring Helen Slater as the titular heroine with a young Christian Slater (no relation) playing her brother and Keith Gordon as the rich kid with lots of gadgets and a penchant for wearing blazers. If you have any doubt in your mind as to how this film could be awesome, then you clearly haven't seen Helen Slater chop off her locks and been affected like the rest of us. You can leave now.
Anyway, this song is fucking epic. Just as epic as the film. It's not just a theme. It's a goddamn anthem.