作词 : McCartney let 'em in someone's knockin' at the door somebody's ringin' the bell someone's knockin' at the door somebody's ringin' the bell do me a favor, open the door and let 'em in someone's knockin' at the door somebody's ringin' the bell someone's knockin' at the door somebody's ringin' the bell do me a favor, open the door and let 'em in sister suzie, brother john, martin luther, phil and don, brother michael, auntie gin, open the door and let 'em in. sister suzie, brother john, martin luther, phil and don, brother michael, auntie gin, open the door and let 'em in. someone's knockin' at the door somebody's ringin' the bell someone's knockin' at the door somebody's ringin' the bell do me a favor, open the door and let 'em in. sister suzie, brother john, martin luther, phil and don, brother michael, auntie gin, open the door and let 'em in. someone's knockin' at the door somebody's ringin' the bell someone's knockin' at the door somebody's ringin' the bell do me a favor, open the door and let 'em in