Solange Knowles celebrated her 21st Birthday in New Orleans on Friday night with some help from her big sister Beyonce. From there, B was on her way north to continue her tour with last night's show in St. Louis. Unfortunately, the concert got off to a bad start when a piece of the stage pyrotechnic show fell, hurting two of the audience members in the front row (video after the jump). Luckily, the injuries were relatively minor and both fans are expected to make a full recovery. Beyonce even made a surprise visit to see them in the hospital this morning, which I'm sure had nothing to do with avoiding legal action. In brighter Beyonce news, rumor has it that she may star in a film version of the Broadway musical Aida. So that would be pretty exciting for her, right?

To see the video of the concert incident, plus more pics of Solange's party just read more