A fire broke out at a Rihanna concert in Dallas on Friday night, forcing the event to end early. A video posted on YouTube shows a fire burning at the top of the stage at the American Airlines Center, with some sparks falling toward the floor. Some people begin to stream out. The R&B and pop star posted several messages on Twitter following the incident. "DALLAS!!! We set the stage on FYAH tonight!!! LITERALLY!!! I'm so (mad), I was havin so much fun wit yall too!!! I gotta come back man!!" the singer tweeted. Read more: http://www.cnn.com/2011/SHOWBIZ/Music/07/09/rihanna.concert.fire/index.html?hpt=hp_t2