The Nike Air Force 1 was produced in 1982 and discontinued the following year. The shoes are sold in three different styles, low, mid and high.It was re-released in 1986 with the modern italic Nike logo with a Swoosh on the bottom on the back of the shoe. Little has changed to the  Nike Air Force Ones since its creation in 1982, although the original stitching on the side panels is no longer present in modern versions of the shoe. Since then, over 1,700 color variations have been produced, bringing in an estimated 800 million USD/year in revenue.The selling of the Air Force Ones online by certain retailers used to be prohibited by Nike who had restricted supply of the sneaker.Nike now allows retailers to offer the shoe for sale online. As a performance shoe, the AF1 is still used for street play as well as for professional play. NBA players Jerry Stackhouse (who now wears Adidas) and Rasheed Wallace have worn Nike Air Force 1 on court. Nike Air Force Ones were originally considered the favored shoe of inner-city youth, then hip hop artists and streetball players. Rapper Nelly and his group, St. Lunatics, collaborated on a 2002 single entitled "Air Force Ones" about the shoes. The shoe is also a focus of the 2007 Grammy-nominated single Classic (Better Than I've Ever Been), a collaboration between Kanye West, Nas, Rakim and KRS-One, that was produced by Rick Rubin.