NEW YORK ( TheStreet) -- Best Buy ( BBY) is selling off Napster. The music download service was sold to Rhapsody on Monday for an undisclosed sum. As part of the deal, Best Buy will take a minority stake in Rhapsody. Best Buy follows Wal-Mart ( WMT) in exiting the music download business. In August, the retail giant announced it was discontinuing its mp3 download service. - Reported by Jeanine Poggi in New York. Follow TheStreet.com on Twitter and become a fan on Facebook.