Invincible

This was the theme song to the movie The Legend of Billie Jean, which was a box office bomb despite the success of this song. The 1985 film stars two unrelated Slaters: Helen and Christian. They play siblings who go on the run after an accidental shooting and are portrayed as delinquents in the news media. Benatar's rousing tune is fitting for Billie Jean, who refuses to back down.

Simon Climie and Holly Knight wrote this empowerment anthem. Climie's songwriting credits include "I Knew You Were Waiting (For Me)" by George Michael and Aretha Franklin, and "Ecstasy" by Jeff Beck. Knight wrote Benatar's 1983 hit "Love Is A Battlefield." In a Songfacts interview with Holly Knight, she says of "Invincible": "I love that song. It's one of my favorite songs. I'd love to hear that song cut by an alternative band, like Foo Fighters or something."

The song makes an appearance in the 2017 season finale of GLOW, which is set in the '80s. It plays in a scene where the main characters wrestle.