Stacy Ferguson, also known as Fergie, is the female vocalist for the Black Eyed Peas. She joined the band in 2003, replacing Kim Hill.

Prior to this, Stacy was a member of the female trio Wild Orchid. Wild Orchid released two albums, but after completing a third album, their record label declined to release it. This may have prompted an emotional crisis, as Stacy has referred in interviews to seeking therapy. She left the group shortly thereafter.

Stacy Ferguson was a child actor, and appeared on the television program Kids Incorporated for several years with Renee Sands, who herself would become another member of Wild Orchid. Her well-scrubbed image on that show presents quite a contrast with the ghetto-funk image she has recently begun to cultivate.

In July 2003, she had a guest role on the Rocket Power special, Reggie's Big Beach Break, on Nickelodeon, voicing a fictitious pop music star named Shaffika.