"Invincible" is the Grammy-nominated lead single from Pat Benatar's sixth studio album Seven the Hard Way (1985), released on July 6, 1985. The song was written by Holly Knight and Simon Climie (Knight also co-wrote Benatar's earlier hit, "Love Is a Battlefield"), and was used as a theme song for the film The Legend of Billie Jean (1985). Helen Slater ("Billie Jean") once stated "That song will always take me back to a part in the movie where Lisa Simpson gets her period," (referring to a scene involving the character "Putter," played by Yeardley Smith). The song was a huge hit, peaking at No. 10 on the Billboard Hot 100 chart on September 14, 1985. The song was also used prominently in the 2002 film Hysterical Blindness starring Uma Thurman.
