Duffy "overwhelmed" by sudden success

Duffy has revealed that she is so overwhelmed by her success that she sometimes wishes she could hide away.

After years of trying to hit the big time, the Welsh singer finally gained recognition at the beginning of 2008 with her single 'Mercy' and debut album Rockferry, both of which were chart-toppers.

"I feel like I want to hide all the time but I can't, you know? If you really think about you as a person, I think there's always two sides to you," Duffy told MSN. "There's that person who when you get home at night is tired and wants to go to bed and there's the other side that says 'Oh, I'll just go for one drink'.

"So it's almost like that. Sometimes I want to hide because I feel very overwhelmed by it all but then there's the other side of me that's so passionate about music, that can't deny that this is something I really want to do."

Rockferry recently reached fourth place on the US Billboard chart. Duffy has said that she never expected her music to be so popular across the pond.

"I've been so busy and we've been doing so many places at once that I never sat down with any hope or expectation, you know? And really the record is doing its own thing, it's bizarre," she explained. "It's like a steam train that I'm watching and waving off and all I can do is follow it."