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 the Octopus get you! Watch out for the ink! Look theres a squid as well! That's the ink again! Oh White Handkerchief It's the all inked Black Handkerchief of Happiness

白いハンカチ 見つかるなヤツに にげろ 白いハンカチ つかまるなタコに それスミだ イカも来たぞ またスミだ 白いハンカチ スミだらけ幸せの黒いハンカチ

Trivia
The title of the song is a parody of the japanese film "The Yellow Handkerchief" (幸福の黄色いハンカチ, Shiawase no kiiroi hankachi-The Yellow Handkerchief of Happiness).