New Delhi, July 2 -- The crowd at Maine Savings Amphitheater watched 2 Chainz finish his set. Then the scheduled 10:45 p.m. slot arrived. Then it passed. Just after 11 p.m. on June 30, Waterfront Concerts staff moved through the venue informing ticket holders that the show was over - and that Lil Wayne was not coming.

whose 20 Years of Carter Classics tour had Bangor marked as its opening night - did not appear and did not communicate why. Thousands of fans who had traveled to coastal Maine for what should have been one of the summer's bigger hip-hop events left without a performance or an answer.

The apology came the next day, posted to Lil Wayne's Instagram story. "My Maine fans I'm so sorry," it read. "The show is being rescheduled t...