Rihanna booed after showing up very late to Boston performance

Rihanna booed after showing up very late to Boston performance
Rihanna came to Key Arena Seattle with special guest A$AP Rocky as part of her 2013 Diamonds tour. April 3rd 2013. (Joshua Lewis)

Spurring even more speculation that she's having personal troubles, Rihanna appeared hours late to a concert in Boston left night, which left crowds waiting three additional hours to see the star. Boston fans had already done plenty of waiting -- Rihanna had already canceled and rescheduled the tour stop due to laryngitis in March -- and they made it know when they booed the 25-year-old R&B singer.

Rihanna, who is rumored to have recently split from on-again, off-again Chris Brown, didn't immediately apologize to fans, which seemed to upset them even more. On Twitter and Instagram, Bostonians hurled insults at the star, noting that it was not only rude to keep them waiting, but that the performance itself was sub-par at best. 

Eventually, though, when it became clear that her fans were unhappy, the Barbadian singer did send a tweet of her own.

"#BOSTON this is the hardest thing for me to deal with! I feel like we've been waiting on this day forever, and I'm hurt that I let you down," she tweeted at 10:03 pm.

Rihanna has been canceling and postponing shows with alarming frequency lately, causing fans to wonder if she may be struggling with something privately