Nicole Scherzinger is a "goofball" when she"s not being "fierce".

The former Pussycat Dolls singer fears she is misunderstood. Nicole believes people think she"s a strong and sexy female 24/7, when in reality she"s just an ordinary girl.

"I think it"s natural that people would have misconceptions about me - they"ve seen me in the [Pussycat] Dolls and in my music videos, when I"m this sexy, fierce girl. And there is a side of me like that - I"ve got my Sasha Fierce [Beyoncé Knowles" feisty alter ego] in me. I"ve always had that," Nicole told British magazine more! "But then everyday I"m just a normal girl. I"m a goofball. I have a sense of humour and people don"t always get to see that."

The 34-year-old admits there is some truth to people"s misconceptions about her. She judged last year"s American X Factor and is now on the panel of the British show. She cracks the whip when it comes to her contestants as she is a workaholic.

"I do work so hard, so that"s where the whole "crazy b***h" thing came from," she revealed. "But I want to bring energy and fun to the panel."