knock knock lyrics

Knock-knock-knockin' on heaven's door, ooh. Knock-knock-knockin' on heaven's door, ooh-oh yeah. Knock-knock-knockin' on heaven's door, ayy hey yeah. Ooh-oh yeah, oh yeah, aw. Mama, put my guns in the ground (Ooh) I can't shoot them anymore (Ooh) That cold black cloud is comin' down (Ooh) Feels like I'm knockin' on heaven's door (Ooh) Knock ... charlie puth loser lyrics