That’ll Be The Day–40th Year Anniversary Tour Don't miss this unforgettable performance celebrating the 40th Anniversary of That’ll Be The Day and Trevor’s farewell tour. Experience a unique blend of rock‘n’roll, pop, and comedy, featuring timeless hits from the 50s through to the 80s. Join us to celebrate this milestone and say goodbye to Trevor as we enjoy four decades of entertainment, showcasing the energy, passion, and talent that have made this the UK’s longest-running touring theatre show.