"Teenage Dirtbag" is a song by American rock band Wheatus. It was released on June 20, 2000, as the lead single from their eponymous debut album (2000). The song was written by guitarist and vocalist Brendan B. Brown and was inspired by a childhood experience of his. The song was successful in Australia, spending four weeks at number one, being certified 3× Platinum, and becoming the second-best-selling single of 2000. It also reached number one in Austria and Flanders while peaking at number two in Ireland, Germany, and the United Kingdom, where it was certified 2× Platinum in 2018. It has sold 5 million copies worldwide as of 2014.[3]