Singer Rihanna seen leaving the Giorgio Baldi restaurant after dinner in Santa Monica (March 20, 2011)

*Rihanna has been advised to cancel domestic dates on her Loud tour following low-ticket sales, according to the New York Post.

The singer faced the same problems with her 2010 “Last Girl on Earth” tour, and had to cancel Phoenix, Dallas, Atlanta, Denver and Indianapolis.

After poor US concert pre-sales last month, Rihanna, 23, has reportedly been advised by her manager, Jay Brown, to cancel upcoming domestic dates on her tour.

“It has been a big disappointment,” the New York Post quoted a source as saying. “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.”

Rihanna is scheduled to perform at T.D. Garden arena in Boston on July 24 with Cee Lo Green. Only 3,700 tickets have been sold, and sources on the tour say she needs to sell at least 15,000 to break even.

They expect more than a half-million dollars in losses from the Boston concert alone.

Her new manager, Brown, who is part of Roc Nation, is preparing to make changes, sources said.

The tour starts in June 4 in Baltimore and heads to Canada and then around the US before moving to England in August.

“She should’ve been doing theatres and smaller venues. She’s not ready to headline an arena tour,” an insider added.