United Kingdom, July 2 -- Madonna has appeared to take aim at ex-husband Sean Penn in her new album Confessions 2.

The legendary 67-year-old star sings about a "movie star with deep blue eyes" in the track Bizarre, with fans assuming she's referring to Sean - to whom she was married from 1985 to 1989.

She sings: "Love is the strangest thing. Just when you think you've finally let go, it comes back to you.

"Movie star, deep blue eyes. In Hollywood, we're a perfect prize.

"He drove way too fast, Shelby Cobra wasn't meant to last."

Madonna gifted a 1968 Shelby GT500 to Sean as a wedding present.

She continues the tune to say the man was "threatened by her" fame, and says he never wanted to "share the red carpet" with her.

Madonna croo...