Britney Spears: "I think I'm a fair judge" on "The X Factor"

(CBS News) Britney Spears hasn't forgotten how hard it is to break into the music business.

The pop star, who is a judge on the upcoming second season of "The X Factor," says she keeps that in mind while critiquing contestants during the show's auditions.

Pictures: Celebrity TV judges
Pictures: Britney Spears

"I think I'm a fair judge," she said in an "X Factor" video after the San Francisco auditions. "Sometimes it's hard because I know what they've been through and being so young and [wanting to] achieving their dreams."

"It's such a subtle and delicate situation when they're that young," she added. "So you just have to use constructive criticism and be there for them and just show them support."

When asked what she looks for in a contestant, the 33-year-old replied, "I'm really just looking for [someone who] shows spark and spunk and someone that's meant to do what they're doing and it shows."

But she says she's not the toughest judge of the bunch.

"I don't think I'm the toughest judge at all," she admitted. "I definitely think Simon would have to be the toughest judge."