"Millionaire" is a song by American R&B singer–songwriter Kelis, featuring American singer–rapper André 3000—half of the hip hop duo OutKast. Written by Kelis and André 3000 who also served as the producer, the song was released in October 2004 as the third single from Kelis' third studio album, Tasty (2003).
"Millionaire" was released as the third single off Tasty and in most countries was the final single to have been released. "Millionaire" became yet another hit for Kelis in the United Kingdom when it debuted and peaked at number three, becoming Kelis' third consecutive top five hit and selling about 65,000 copies. "Millionaire" although achieved a position in the British top five, spent a relatively short eleven weeks on the chart and quickly declined before it fell off the chart completely shortly after its debut, but nonetheless remains Kelis' third biggest hit in Britain, tied with "Lil Star" which peaked at number three in 2007. Despite peaking within the top five in the United Kingdom, "Millionaire" performed poorly on the charts internationally, peaking at number forty-three in Switzerland, number sixty-five in Germany, and number sixty-nine in Austria. Also in Australia "Millionaire" debuted at a relatively low number thirty, but peaked at number twenty-three several weeks later, but compared to her previous two singles "Milkshake" and "Trick Me" which both became top five singles, "Millionaire" seemed to have ended Kelis' string of top five hits and went uncertified. In the U.S. like "Trick Me", "Millionaire" was not released and therefore did not chart on the U.S. Billboard Hot 100; "Trick Me" however had managed to chart on the U.S. BillboardBubbling Under R&B/Hip-Hop Singles, while "Millionaire" had failed to chart on any Billboard charts.