When veteran Hip-Hop producer Dr. Dre released his Beats by Dr. Dre heaphone line in 2007, consumers around the world bought the product at lightning speed. Now, Atlanta rapper Ludacris has jumped on board of the headphone gravy train with the introduction of his new Soul headphone line. With it’s sleek, modern design, the Soul line will feature five models, one including a noise-canceling set. The Soul headphones by Ludacris are supposedly scheduled to be available in stores in early 2011.