Two of music’s most respected hip-hop/R&B artists are collaborating to create a tour that is sure to be the hottest concert ticket of 2008. Mary J. Blige and Jay-Z will perform together in Phoenix at the US Airways Center as part of a 25-date, nation-wide tour. As one of the biggest rappers of all time, concert material will center around his two albums produced since his 2004 tour: American Gangster and Kingdom Come. Both Blige and Jay-Z are hot commodities at this point in their careers, as Blige won two Grammy’s on Feb 10, and Jay-Z went home with one. The concert is not until April 15, but act quickly, because this show is sure to sell-out. Tickets go on sale March 8 and can be purchased at ticketmaster.com.