"Who the Hell Are You" is a song by Australian house music band Madison Avenue, released as a single from their only studio album, The Polyester Embassy, in 2000. The song was a hit in the band's native Australia, debuting and peaking at number one on the ARIA Singles Chart for two weeks in June 2000 and winning the 2000 ARIA Music Award for Best Video. Later in the year, the song reached number 10 in the United Kingdom, number 32 in New Zealand and number 41 in Ireland. In March 2001, it topped the US BillboardHot Dance Music/Club Play chart for a week.