Here's the chord progression for Guava Jelly by Bob Marley.

Intro:
Cmaj7Cmaj7 Piano Chord 
  | Dm7Dm7 Piano Chord 
 G7G7 Piano Chord 
  |Cmaj7Cmaj7 Piano Chord 
   | Dm7Dm7 Piano Chord 
 G7G7 Piano Chord 


Verses:
CC Piano Chord 
                |Dm7   G7G7 Piano Chord 
  |CC Piano Chord 
            |Dm7   G7G7 Piano Chord 
   |CC Piano Chord 
                 |
You said you |love  me  |     I said I|love  you  |     why won't you|

AmAm Piano Chord 
                 |F          |F/GG Piano Chord 
      GG Piano Chord 
    |F                 |
Stop your crying|   Dry your|weeping  eyes |   You know that I|

CC Piano Chord 
                                  |CC Piano Chord 
                       |
Love  I love, I love, I love you so|  da-da-dam da-da-damsel|

FF Piano Chord 
         CC Piano Chord 
              |FF Piano Chord 
              CC Piano Chord 
             |G7    CC Piano Chord 
    |
Here I am   me said, Come|rub it 'pon me belly with you|Guava Jelly|

CC Piano Chord 
                    |F             CC Piano Chord 
     |F              CC Piano Chord 
             |
Da-da-da da-da-damsel|Here I stand,   come|rub it 'pon me belly with you|

G7G7 Piano Chord 
     CC Piano Chord 
     |CC Piano Chord 
                    |F           G7G7 Piano Chord 
       |
Guava  Jelly |     I really, really|   I really love  you|

CC Piano Chord 
                 |F                  G7G7 Piano Chord 
    |
Yes, I really|  really love you, child.|

the rest should be easy to figure out as long as you have these chords.