The eccentric singer - famed for her daring outfits - refuses to let herself give into her feelings of self-doubt because she needs to maintain her pop persona at all times.
She said: "When I wake up in the morning, I feel just like any other insecure 24-year-old girl. Then I say, 'B***h, you're Lady Gaga, you get up and walk the walk today.'"
The Bad Romance hitmaker - real name Stefani Germanotta - takes her image so seriously, she wouldn't even let ill-health stop her from dressing up.
She explained to Rolling Stone magazine: "If I were to ever, God forbid, get hurt onstage and my fans were screaming outside of the hospital, waiting for me to come out, I'd come out as Gaga."
Despite her grueling dance routines, the star also refuses to drink water on stage as she thinks showing signs of weakness such as dehydration would let her fans down.
She added: "I don't even drink water onstage in front of anybody, because I want them to focus on the fantasy of the music."
Gaga takes her inspiration from the late Michael Jackson - who died of acute Propofol intoxication last June - because of the way he carried on even after his hair caught fire during filming of a Pepsi commercial in 1984.
She said: "Michael got burned, and he lifted that glittered glove so damn high so his fans could see him, because he was in the art of show business."
