By Whitney Pastorek
Updated July 09, 2010 at 04:45 PM EDT

Image Credit: Fotonoticias/WireImage.comAccording to the LiveNation website, Rihanna has canceled stops on her “Last Girl on Earth” tour in Phoenix, Dallas, and Atlanta, on top of already-dumped shows in Denver and Indianapolis. (The tour’s opening date in Washington last weekend was also canceled, due to “production changes.”) We’ll put in a call to find out what’s going on, of course, but thought you should all know.

Meanwhile, weigh in! Why is Rihanna struggling? Is it because she called her tour “Last Girl on Earth,” but then brought along also-a-girl Ke$ha as an opening act, thereby rendering the tour’s title moot? And as we fill in yet another square on the Summer Tour Cancellation Board, I guess it’s time to start asking: Anyone get a bingo yet?

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