Just as she did last year, Rihanna is having a tough time selling tickets to her upcoming concert tour. According to Page Six, Rihanna’s management have advised her to cancel tour dates in the United States because ticket sales are too slow.

This surprises me because Rihanna’s Stans, er, Navy is at least 5 million strong. But, apparently, they are not confident enough in her singing ability to buy her tickets?

This is yet another setback for the immature redhead. My inside source tells me that Rihanna is taking the cancellations very hard. 2011 is just not her year.

Sources say after poor US concert pre-sales last month, Rihanna has been advised by her day-to-day manager, Jay Brown, to cancel domestic dates on her “Loud” tour.

“It has been a big disappointment,” our source said. “The ticket sales in big US cities like Boston are so bad, they will barely cover basics like the lighting and other arena costs. Tour managers are begging local radio stations to do giveaways.”