Michael Jeffrey Jordan, also known by his initials MJ, is an American former professional basketball player and businessman. His biography on the official National Basketball Association (NBA) website states: "By acclamation, Michael Jordan is the greatest basketball player of all time." He played fifteen seasons in the NBA, winning six NBA championships with the Chicago Bulls. Jordan is the principal owner and chairman of the Charlotte Hornets of the NBA and of 23XI Racing in the NASCAR Cup Series. He was integral in popularizing the basketball sport and the NBA around the world in the 1980s and 1990s, becoming a global cultural icon.