Fergie
The only female in the four-member group, Stacy Ann Ferguson -- better known by her stage name 'Fergie' -- is the vocalist. Known for her eclectic fashion sense, this American pop and R&B singer, songwriter, and actress is also a former member of the kids' television series Kids Incorporated, and the girl group Wild Orchid.
Her solo album 'The Dutchess', released in 2006, has so far spawned three US Hot 100 number ones, making her the first female solo artist to have three number ones from the same album since Christina Aguilera in 2000.
Also read: Photo: Aerosmith rocks Bangalore