Over the last few years, the Rock the Bells tour has grown from a series of one-off shows into a full-scale touring entity -- although its aim (to showcase the best, most innovative hip-hop artists) hasn't changed.On Monday, August 24, the tour will stop at the Blue Note in Columbia. Performing will be Reflection Eternal (Talib Kweli and Hi-Tek), Slaughterhouse (Joe Budden, Royce Da 5'9", Joell Ortiz, Crooked I) and Supernatural. (Slum Village was originally supposed to be on the bill, but origi
