Disturbed's concert Sunday night at the House of Blues has been canceled because the rock band's lead singer, David Draiman, has been diagnosed with a serious throat condition.
According to tour promoter LiveNation, the unspecified "condition" is not permanent, but Draiman must stop performing for at least four weeks in order for it to heal. Refunds are available at point of purchase.
Draiman underwent surgery for a deviated septum in 2006, which affected his voice. Of course, it's not surprising that he's having throat problems when he sings like this: