My first tab, please suggest improvements.  
I did my best to capture the chords used in the song.  
Of course, Keni Thomas likes to improvise with hammer-ons,
pull-offs and even lyrics sometimes.  
Therefore this is a little basic compared to his actual performance.

Keni Thomas
"Another Mexico Song"

Standard Tuning

Chords Used:
e|----3-----3-----2-----3-----0--|
B|----3-----3-----3-----3-----0--|
G|----0-----0-----2-----0-----0--|
D|----0-----2-----0-----0-----2--|
A|----2-----3-----x-----0-----2--|
E|----3-----x-----x-----2-----x--|
      G   Cadd9   D    G/F#   Em

Here goes..
 G
Another sad song.
                                Cadd9
About a trip gone wrong down in Mexico
  D
A mariachi band and a girl with a tan
           G
Met at the Texaco 
        Cadd9         D                       G
Singin' I-I-I fell in love with the wrong senorita."
    Cadd9      D                 G
And "I-I-I had one too many margaritas."
       Cadd9                D
How it all happened I don't know
       G     G/F#   Em  
'Cause no hablo espanol
Cadd9                         D
Another sad, sad song 'bout a trip gone wrong
        G
Down in Mexico.
       
       G
We was headin' out for Spring Break

Cabo Wabo can't wait
Cadd9
Gonna have the time of our lives
        D
But the cooler's running low 

So we found a Texaco
       G
And we pulled in for another bag of ice

        G
She was leanin' on my front hood

Ooh, she was lookin' good
Cadd9
Couple of Coronas in her hand
           D
She said, "You're new in town
                
Let me show you around
      G
Mi hermana,

She would love to meet your friend."


Here goes..
 G
Another sad song.
                                Cadd9
About a trip gone wrong down in Mexico
  D
A mariachi band and a girl with a tan
           G
Met at the Texaco 
        Cadd9         D                       G
Singin' I-I-I fell in love with the wrong senorita."
    Cadd9      D                 G
And "I-I-I had one too many margaritas."
       Cadd9                D
How it all happened I don't know
       G     G/F#   Em  
'Cause no hablo espanol
Cadd9                         D
Another sad, sad song 'bout a trip gone wrong
        G
Down in Mexico."

      G
Well, I knew I was in trouble

When I started seeing double
     Cadd9
I was singing with a mariachi band
D
Maria does the rumba,

I'm singing La Bamba
          G
Is that a preacher with a Bible in his hand?

        G
Well, I woke up in the bed

There's a pounding in my head
     Cadd9
Maria says

"Buenos dias, mi amor" 
              D
And there's a ring on my finger

I swear I don't remember
     G
Your Honor, is that grounds for a divorce?


Here goes..
 G
Another sad song.
                                Cadd9
About a trip gone wrong down in Mexico
  D
A mariachi band and a girl with a tan
           G
Met at the Texaco 
        Cadd9         D                       G
Singin' I-I-I fell in love with the wrong senorita."
    Cadd9      D                 G
And "I-I-I had one too many margaritas."
       Cadd9                D
How it all happened I don't know
       G     G/F#   Em  
'Cause no hablo espanol
Cadd9                         D
Another sad, sad song 'bout a trip gone wrong
        G
Down in Mexico.

   Cadd9                               D
And now I'm gonna spend the rest of my life
        Cadd9                         D
Drunk on some beach with my beautiful wife
                 G          G/F#     Em      
You know, that's not such a bad song after all

Cadd9                         D
Another sad, sad song 'bout a trip gone wrong
        G
Down in Mexico.