The biggest surprise in my career is that I have a career, says Gwen Stefani

Gwen Stefani has recently revealed that she never ever thought that she would become such a best-selling artist and could even win the Grammy award.

'No Doubt' vocalist said that the biggest surprise in her career was that she even has a career as she was just a normal girl in a music band with her friends, but then her career took a graph and she never looked back, E! Online reported.

The American singer recently teamed up with MasterCard for their "Priceless Surprises" campaign.