Claim: Some singing for The E.N.D. was performed by Fergie.

Fergie Duhamel -LRB- -LSB- ˈfɜːrɡi_dəˈmɛl -RSB- -RRB- -LRB- born Stacy Ann Ferguson ; March 27 , 1975 -RRB- is an American singer , songwriter and actress . She was the female vocalist for the hip hop group The Black Eyed Peas from 2002 until 2017 , with whom she had achieved chart success worldwide . Her debut solo album The Dutchess -LRB- 2006 -RRB- was a major commercial success on the charts and spawned three Billboard Hot 100 number one singles ; `` London Bridge '' , `` Glamorous '' and `` Big Girls Do n't Cry '' .   Ferguson was a member of the children 's television series Kids Incorporated and the girl group Wild Orchid . In 2001 , she left the group and in the subsequent year began to team up with The Black Eyed Peas . With The Black Eyed Peas , she enjoyed a series of hits and albums before she released her solo debut album in September 2006 to success . The Black Eyed Peas enjoyed further success with the release of their third album with Ferguson , The E.N.D. -LRB- 2009 -RRB- ; they attained their first string of Billboard Hot 100 number one songs . She began touring in 2009/2010 with her group and she launched her debut fragrance , Outspoken , under Avon in May 2010 and has since released three more fragrances .   She continued success with The Black Eyed Peas and they released the album The Beginning -LRB- 2010 -RRB- , which featured three singles , including two number one songs . As Ferguson 's five solo singles and six singles with The Black Eyed Peas have reached two million downloads in the United States , Ferguson was the artist with the most two-million sellers by the beginning of 2011 .