Pop singer Lady Gaga feels she is "liberating" herself by constantly changing her image and sound. The "You + I" singer is known for her eccentric fashion sense and straddles a number of genres on her latest album, Born This Way, a practice she has been drawn to since she was a girl.

"When I was young I had something very different inside of me. I like to liberate myself with my ability to change, the fantasy becomes my reality," she says in a new documentary Gaga By Gaultier.

The 25-year-old star - real name Stephanie Germanotta - added she never feels the urge to change her outrageous outfits for normal clothes, because her fans expect her to always be Lady Gaga:

"They're my lifestyle, it's not dressing up, a costume, a show, or a character. It's my whole life. I've been dressing like this for more than six years. While I was living in New York, I fell in love with expressing myself through clothing. I wanted to make a name for myself as a musician and stand out. I want to give my fans everything they deserve and they do not deserve sweat pants and sneakers. They deserve the real me all the time, and this is who I am."