Sacramento rap duo Gift of Gab and Chief Xcel like tongue-twisters, political commentary, tricky beats, and old-school keyboard hooks. Their rich, kaleidoscopic sonic palette draws on countless black pop styles. Reunited after a decade-long hiatus, they’re currently touring to celebrate the 20th anniversary of their first full-length album, 1999’s Nia. With Heiruspecs. Rescheduled from Aug. 25 to Dec. 8. All original tickets will be honored.