St David’s Hall Thursday 3 September 7.30pm   Tickets on Sale Friday 6 February at 10am  PROG-ROCK legends King Crimson are back on the road and are stopping off at St David’s Hall! Always intriguing and innovative, the psychedelic icons are set to captivate a Cardiff crowd on Thursday 3 September with a back catalogue spanning nearly 50 years. Since forming in 1968, King Crimson have established a reputation as one of the founding fathers of progressive rock, which inspired…