Lady Gaga Says Her Dad Thought She Was 'Mentally Unstable'

'We didn't talk for months after the first time he saw me play,' singer told Barbara Walters about her father's reaction to her performance style.

[artist id="3061469"]Lady Gaga[/artist] has certainly made her mark over the past year, not just with hit singles like "Paparazzi" and "Bad Romance" but also with the level of performance art she brings to their live and television renditions, which include her "dying" at the VMAs and performing with her piano on fire at the American Music Awards.

And if music lovers were surprised by Gaga's performances at the beginning of her career, imagine how her father felt. When she sat down with Barbara Walters on her "10 Most Fascinating People of 2009" special, which aired Wednesday night, she explained that it took a while for her dad to get comfortable with her act.

"It wasn't really so easy for my dad, especially in the beginning," she told Walters. "We didn't talk for months after the first time he saw me play, and my mother told me he was afraid I was, like, mentally unstable."

Gaga has since written a song about her dad and says the two are back on speaking terms. But the performer knows there are people who are still unsure of the sincerity behind her bizarre pop star persona. "[I want to clear up the fact] that [people think] I am artificial and attention seeking, when the truth is that every bit of me is devoted to love and art and I aspire to be a teacher to my young fans who feel just like I felt when I was younger," she said.

"I felt like a freak. ... I want to liberate [my fans]. I want to free them of their fears and make them feel like they can create their own space in the world."

Among other things, she described herself in the interview as "an Italian girl from New York." "I am a songwriter. I'm a performance artist. I'm a daughter and a sister," she told Walters, adding, "I had this dream and I really wanted to be a star and I was almost a monster in the way I was fearless in my ambition."

The one question that made Gaga flinch was on the issue of her sexuality in the context of her hit "Poker Face." "Well, I do like women. [But] I've only been in love with men," she explained. "I've never been in love with a woman, but that's really what the song is all about: Why, when I was with my boyfriend, was I fantasizing about women?" When directly asked if she's had sex with a woman, she became momentarily flustered before answering, "Well my goodness ... I certainly have had sexual relations with women, yes."