How did liv Tyler find out steven Tyler was her father?

Liv Tyler discovered that Steven Tyler was her father when she was 11 years old. Initially, she believed her father was musician Todd Rundgren, who had been in a relationship with her mother, Bebe Buell. The revelation came about when she saw a magazine cover featuring Steven and recognized the resemblance. Liv's mother eventually confirmed the truth to her, leading to a relationship with her biological father.