Mother named her Liv after spotting actress Liv Ullmann on the cover of TV GUIDE.
Grew up believing that singer Todd Rundgren was her father. Around age 10, she discovered that family friend Steven Tyler of Aerosmith was her biological father.
Made her feature-film debut in 1994's Silent Fall.
Appeared in Aerosmith's 1994 music video for "Crazy" alongside Alicia Silverstone.