Fans of classic rock should take note.  Starting this spring, Rod Stewart and Carlos Santana will be heading out on the road together across North America.  The tour is named the "The Voice, The Guitar, The Songs," and will kick off May 23 in Albany, NY and will conclude Aug. 20 in Wantagh, NY. Prior to this tour, Santana will be finishing up a few other shows.  Santana also has plans to release