Adventure Time Piano

The Adventure Time Theme Song and opening title sequence features all of the main characters and also some of the minor characters. The theme is sung and played by series creator Pendleton Ward. It has the same lyrics as the Animated Short but there are some slight variations.
Lyrics
Adventure Time,
C'mon grab your friends,
We'll go to very
distant lands. With
Jake the Dog and
Finn the Human,
The fun will never
end, it's Adventure