Buddy Killen's discoveries - and a question

Much of the career of Nashville music publisher and songwriter Buddy Killen, who has died, was of limited interest to me, as it was concerned with country music. But he made two exciting discoveries which certainly were of interest. The first was Heartbreak Hotel, written by Mae Boren Axton, which he thought would be a suitable vehicle for Elvis. Hewas right. And the second was Joe Tex, whose wonderful country soul records for Dial, which Killen set up just for Joe, were among the soul highlights of the late sixties and early seventies. Who could ever forget Hold what you've got?
A question: why do reggae singers cancel gigs at the last minute so often? The answer, probably, is ganja, but no explanation was given for Sugar Minott's show at the Jazz Cafe being cancelled due to 'unforeseen circumstances' on Monday. Dave had kindly offered me one of two free tickets he had won in a competition. So we didn't even have the consolation of getting our money back!