wrote in a statement Monday.Tritt canceled four upcoming shows in Indiana, Mississippi, Illinois and Kentucky.“Any show I have booked that discriminates against concert-goers by requiring proof of vaccination, a COVID test, or a mask is being canceled immediately,” the “The Whiskey Ain’t Workin'” singer said.Guitarist Eric Clapton and comic Jim Breuer have also said they would not perform at venues that require vaccination proof.Artists like Bruce Springsteen and the Foo Fighters have taken the opposite tack, canceling gigs at venues that don’t require vax cards..