We featured Brett Domino's first video guide to writing a pop hit two weeks ago: now he's returned to impart yet more wisdom upon the masses.
This time, he's concentrating on the chorus section of the song, with a guide to nailing that perfect catchy hook. There's also an unexpected trick with a washing machine.
Watch below to hear Brett's answer to Iggy Azalea and Charlie XCX's Fancy; an unforgettable ditty called Pinnochio. Complete genius.