Keith Urban will perform at nine of Kenny Chesney's stadium shows scheduled this summer. Brooks & Dunn will be appearing at five of the 14 concerts. Urban will appear in Cleveland (May 24), Phoenix (May 31), Pittsburgh (June 14), Chicago (June 21), Nashville (July 5), Philadelphia (July 19), Foxboro, Mass. (July 27), Detroit (Aug. 2) and Indianapolis (Sept. 13). Brooks & Dunn will perform prior to Chesney's set in Columbia, S.C., (April 26), Dallas (May 3), San Francisco (June 8), Atlanta (July 13) and Baltimore (May 10). LeAnn Rimes will appear at all of Chesney's stadium shows, and Gary Allan, Big & Rich, Sammy Hagar and Luke Bryan will be performing at selected dates. The Massachusetts show is already sold out. Ticket information has not be announced for the other shows.