Related Information for Twenty TwentyCambridge brothers Sam Halliday and Jack Halliday have been writing and playing music together since college. When they finished their college courses, Sam and Jack decided it was time to let their passion for music loose and so the two lads put their university education on ice to pursue their dreams. Soon after they made contact with rtb management, who on hearing a couple of their demo tracks signed them to a management deal to help further their careers. read more