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Caribbean Pop star Rihanna has been forced to scrap another date on her “Last Girl On Earth” U.S. tour due to poor ticket sales.

The platinum selling artist earlier this month axed the launch show of her Last Girl On Earth Tour with Ke$ha. Her tour promoters blamed changes in production for the cancellation. But several other tour dates has been cancelled in several cities across North America.

Just as the tour got underway with a solid performance in Vancouver Canada, the jaunt has been hit hard again – her show at Indiana’s Verizon Wireless Music Center on August 3rd has been called off, according to ticketing websites. It is believed poor sales figures have forced the move.