Chords used: 

     C                   F                   G7
e||-------------------|--1----------------|--1----------------||
B||--1----------------|--1----------------|--0----------------||
G||--0----------------|--2----------------|--0----------------||
D||--2----------------|--3----------------|--0----------------||
A||--3----------------|-------------------|--2----------------||
E||-------------------|-------------------|--3----------------||



C                F      C
Twinkle, twinkle little star.

F     C      G7       C
How I wonder what you are.

C   F        C        G7  
Up above the world so high,

C      F       C      G7
Like a diamond in the sky.

C                F      C
Twinkle, twinkle little star.

F     C      G7       C
How I wonder what you are.

来源：www.ultimate-guitar.com