"Switch" is a song by American hip hop recording artist Will Smith. was released on February 15, 2005 as the first single of his fourth studio album Lost and Found, with the record label; Interscope Records. The song was produced by Kwame "K1 Mil", who also participated in the band composition, along with the interpreter and Lennie Bennett. This song was also featured as a track on the 2005 compilation album Now That's What I Call Music! 19 and it was featured in a trailer for Tekken Tag Tournament 2.

Will Smith performed the song live on the Nickelodeon's 2005 Kids' Choice Awards, at San Antonio before Game 1 of the 2005 NBA Finals between the Detroit Pistons and the San Antonio Spurs, on BET's 106 & Park, and at the Live 8 concert in Philadelphia.

"Switch" was Smith's highest charting single from Lost and Found. On the chart dated April 16, 2005, the song peaked at number one on the Billboard Hot Digital Songs chart, selling 40,000 digital copies. The peaked at number seven on the Billboard Hot 100, becoming Smith's third Hot 100 top 10 hit as lead artist and fourth overall. It reached number one in Canada and Australia, where it remained for one week, and number four in the United Kingdom.

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