Ciara has announced that she and
Jay-Z will co-headline an R&B/hip-hop tour this summer. The songbird tweeted the message on her
Twitter page Monday night. "I will say it because the information has been leaked," she confirmed. "Me and Jay-Z will be doing a 10-city tour run together!" Although no dates have been formally announced, stops in Las Vegas (July 3 and 4), Uncasville, Conn. (July 10), and Atlanta (July 12) have been reported.