Katy Perry has announced her PRISM Tour that will have special guests Capital Cities, Kacey Musgraves, and Tegan And Sara. The tour will kick off in Raleigh, North Carolina on June 22nd. The 46-city tour is presented by Goldenvoice, a division of AEG Live. She will be touring in support of PRISM, which debuted at number one on The Billboard 200 and remains in the Top Ten three months after release. The platinum album has given Katy her biggest ever single with "Roar", while "Dark Horse" just became her lucky 13th Top Ten hit on The Billboard Hot 100. Capital Cities, Kacey Musgraves and Tegan and Sara will open for Katy in different markets during the 4-month North American tour. For more info on this story and tour dates, click here!!