Trivia

She was offered the role of Lucy Ewing on the soap opera Dallas (1978), which she turned down because she would have to sign a seven-year contract, and she wanted to pursue music as well and that would have prevented her from doing so. The role went to Charlene Tilton.

Refused to perform the song "Take My Breath Away" at the Academy Awards as part of a medley of the Oscar-nominated songs that year. Nunn said she would only perform the whole song for the telecast, so the song, which won the Oscar, went unperformed. Nunn has said she regrets her decision to this day.

She auditioned for the role of Princess Leia Organa in the Star Wars series, but lost out to Carrie Fisher, noting that Harrison Ford did not like Nunn (1976).

Lead singer of the 1980s New Wave group Berlin, which has hits with "Sex (I'm a)...", "The Metro", and the Oscar-winning "Take My Breath Away" (by Giorgio Moroder and Tom Whitlock from Top Gun: Pasión y gloria (1986)). Her favorite song by the band is "The Metro".

Daughter of actor Larry Nunn.

Has three children, a daughter and two stepsons, with her husband, Paul Spear. One of the stepsons is a medic in the United States Army. The family has resided in Santa Rosa Valley, California since 2012. Nunn is a vegan, formerly a vegetarian, since age 19.