The singer and AUSTIN POWERS IN GOLDMEMBER star avoids behaving in a demanding manner, because her mother wouldn't tolerate it.
She says, "When I'm on a stage, yeah, I'm a diva. When I am in front of a camera, I am a diva. But when I'm not performing, I leave all that behind.
"I would never guarantee anything else in life - especially when you're only 21, that's not smart - but I can guarantee you that my mom would lock me up until I came back down to earth if I acted like a diva in my real life."