At one point, The Black Eyed Peas were a three piece all male group. They would frequently bring in female guest stars, such as Macy Gray, to do some harmonies or call-and-answer.
When it came time to record their third album, Will.I.Am called a former member of girl group Wild Orchid and Kids Incorporated cast member Stacy Ferguson, to try out on the call-and-answer song we feature today. Needless to say, it was a good match - you know her better as Fergie. She went on to record five other songs with the group for that album, many of which became big hits, and was granted full member status in time for their fourth album.
You know from previous posts how much I love call-and-answer hip-hop, and this is no exception. The Peas were already a decent hip-hop trio before Fergie was thrown in, and her edgy pop style really fused well with the trio.