Stefani has admiited that she is obsessed with her appearance and strives to stay thin because she was a bit chubby when she was younger.
The singer gave birth to Kingston in May 2006, and admits that keeping the weight under control is a full-time job.
According to FemaleFirst, "I’m super neurotic about diet and I’m super vain. I was chubby when I was a little girl and I have those issues everyone else has."