Great little song, I won't bother with exact tabbing but I'll 
provide the chords! 
The E's are all barred, and the A's are not.

Intro: E with a little hammer on/hammer off on 
the A string from the 7th to 9th fret. Listen to 
the song for exact timing. About when he does it, 
I'll notate it as B6sus4, or B6, for short.

E (022100@1)                      B6You (02110x@1)are my little red dot
E (022100@1)                      B6You (02110x@1)are my little red dot

ADon't (x02220@1)worry                   Here he does ahammer (x02210@1)on/off on the Dstring, (xx0232@1)
                        F#m (244222@1) shortened from F#m/A, from the 2nd to 4th fret, 
The water is not too deep     which sounds the sameas the earlier version on 
A5 (x022xx@1)                          the Astring.This (x02220@1)A5is (x022xx@1)actually an A5addD#, 
Don't worry                   played as x02233.
                         F#mThe (244222@1)hill is not too steep

E, B6

E (022100@1)                      B6You (02110x@1)are my little red dot
E (022100@1)                      B6You (02110x@1)are my little red dot

A5 (x022xx@1)                          F#m (244222@1)   Notice there is no plain Ahere, (x02220@1)it 
Don't worry and don't be afraid       goes straight to the A5.
A5 (x022xx@1)                                 
Don't worry 
                            F#mYour (244222@1)beauty shall never fade

E, B6



All chords(in normal and shortened forms):
E:779997
B6sus4(B6):799997
A:x0222x
F#m/A(F#m):x0422x
A5addD#(A5):x02233