Here's a link to Bob Dylan - Knockin' on Heaven's Door (ORIGINAL)

The lyrics are given on the video screen.

For those who can't get YouTube, here are the lyrics to that song:

KNOCKIN' ON HEAVEN'S DOOR

(Bob Dylan)

Mama, take this badge off of me
I can't use it anymore.
It's gettin' dark, too dark for me to see
I feel like I'm knockin' on heaven's door.

Knock, knock, knockin' on heaven's door
Knock, knock, knockin' on heaven's door
Knock, knock, knockin' on heaven's door
Knock, knock, knockin' on heaven's door

Mama, put my guns in the ground
I can't shoot them anymore.
That long black cloud is comin' down
I feel like I'm knockin' on heaven's door.

Knock, knock, knockin' on heaven's door
Knock, knock, knockin' on heaven's door
Knock, knock, knockin' on heaven's door
Knock, knock, knockin' on heaven's door

http://www.bobdylan.com/#/songs/knockin-heavens-door

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"Knockin' on Heaven's Door" is a song written and performed by Bob Dylan for the soundtrack of the 1973 film Pat Garrett & Billy the Kid. It reached #12 on the Billboard Hot 100 singles chart. In 2004, representatives of the music industry and the press voted it #190 in Rolling Stone magazine's 500 Greatest Songs of All Time issue."

http://en.wikipedia.org/wiki/Knockin'_on_Heaven's_Door