Katy Perry Adds September Dates to Her North American Tour

Katy Perry has added more US dates to her upcoming California Dreams 2011 Tour. The newly announced gigs run from a Sept. 7 show in San Antonio through a Sept. 17 concert in Tulsa, Okla.As previously reported, Katy’s North American trek kicks off June 7 in Atlanta. The new September dates will feature Janelle Monae as the opening act, while Robyn and Marina & the Diamonds will provide support