“Fergalicious” was written by will.i.am and Fergie, credited as Will Adams and Stacy Ferguson respectively. The song contains samples of “Supersonic” by J. J. Fad and “Give It All You Got” by Afro-Rican.Click to see full answer. Accordingly, what movie is the song Fergalicious in?Fergalicious – From “17 Again”, a song by Movie Sounds Unlimited on Spotify.Subsequently, question is, why does Fergie call herself the Duchess? The album’s title, The Dutchess, is a derivation of the noble title “The Duchess of York”, as Fergie (a derivative of her last name “Ferguson”) and Sarah Ferguson, the real Duchess of York, share a surname and nickname. Accordingly, is fergalicious a word? to make the boys go loco or crazy. From the song Fergalicious. Dang! that girl is fergalicious! Fergalicious. Share Tweet E-mail More info: Interactive stats: R Related words Usage Vulgarity SlangMap Will I Am singer?William Adams (born March 15, 1975), known professionally as will.i.am (pronounced ‘Will-I-am’), is an American rapper, singer, songwriter, record producer, DJ, actor and television personality. He is the founding and lead member of the hip hop group The Black Eyed Peas.