U2 turned down $10 million for one show in the Caribbean. The ‘One’ hitmakers are among a host of largely older established acts – including AC/DC, The Cure, Depeche Mode, and Bruce Springsteen – who are not interested in playing private concert for wealthy clients, and even a hefty pay cheque couldn’t get the band to agree to a one-off performance. Jay Siegan, whose company specialises in organising private gigs by big names, told The Times newspaper: “We recently made an offer to U2 of $10 million to perform on an island in the Caribbean for a private client. They quickly declined. “As a kid…