"Glamorous" is the third single taken from Fergie's solo debut album, The Dutchess; the song features Ludacris. The single was released on March 19, 2007 in the UK and will be the second single taken from the album as "Fergalicious" wasn't officially released there. The single wasn't as successful in Latin America as London Bridge and Fergalicious. In March 2007, the song became Fergie's second number-one single in the United States. Fergie sang this song along with "Big Girls Don't Cry" at the Concert for Diana.