Black Handkerchief of Happiness

Black Handkerchief of Happiness is a song that Brook sung to awaken his crew when he was alive. It is loud, fast paced and annoying.

Recently a CD version was released in Japan with the full song which only lasts 30 seconds 

Lyrics
Oh White Handkerchief don't let him find you! Run Away oh white handkerchief Don't let him get you! That Octopus hide away Look theres a squid as well!