Fergie was determined to get in shape for the Black Eyed Peas tour - she's shed a massive 17 pounds (7.7 kilograms).
The group has performed a number of shows in Europe over the last few months and hits the road again for a U.S. tour from August to October (09).
Frontwoman Fergie embarked on a strict new diet to prepare for the band's energetic routines, dropping 17 pounds from her frame - and credits working out alongside husband Josh Duhamel with helping her lose the weight.
She says, "I dropped 17 pounds to prepare for our new tour. There’s no easy way to lose weight. You have to work out and eat less. At the moment I’m drinking Skinny Water. With a name like that it has to be good, right? Josh and I work out together."