Looks like Dallas Black Dance Theatre's gotten itself a very, very important person for its grand opening gala on April 18: none other than Nelson Mandela, who'll come to town to pick up something called the World Impact Award for "his commitment to his vision and for the profound effect he has had in our world," naturally. The shindig, during which Dallas Black Dance Theatre will debut its new Arts District digs, will also include a concert by Patti LaBelle and a dinner prepped by Abacus' Kent Rathbun; tickets are available here, though a warning -- they are not cheap. --Robert Wilonsky