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 website states: "By acclamation, Michael Jordan is the greatest basketball player of all time." He was integral in helping to popularize the NBA around the world in the 1980s and 1990s, becoming a global cultural icon in the process. Jordan played 15 seasons in the NBA, winning six championships with the Chicago Bulls. He is the principal owner and chairman of the Charlotte Hornets of the NBA and of 23XI Racing in the NASCAR Cup Series.