"American Boy” is a song by British singer and rapper Estelle for her second studio album Shine (2008). It features vocals from US rapper Kanye West. The song was written by Estelle, West, Ethan Hendrickson, will.i.am, John Legend, who provides additional background vocals, Josh Lopez, Caleb Speir, and Keith Harris. It was produced by will.i.am, and uses the instrumental from "Impatient" from his own third studio album Songs About Girls (2007). "American Boy" is a breezy Dance-pop, Synth-pop and disco-funk song that lyrically describes a romance with an American suitor. The song's conception came after Legend, Estelle's mentor, suggested she write a song about meeting a man from the United States.
"American Boy" was released by Atlantic Records as the album's second single on 31 March 2008. The song received positive reviews from music critics, who praised its fresh sound and production. The song reached the top five in many European and Oceanic markets, and peaked at number-one in Belgium and Estelle's native United Kingdom. It also achieved success in the United States, peaking at number nine on the Billboard Hot 100 and becoming Estelle's breakout song in the country. The song earned many nominations, and ultimately won a Grammy Award for Best Rap/Sung Collaboration. The music video, featuring a variety of celebrity guests, earned a Video Music Award nomination for Best UK Video. Estelle and West performed the song at the 2008 MTV Europe Music Awards and 2008 Grammy Awards.