Let's Go See Master Nekomamushi

Let's Go See Master Nekomamushi (ネコマムシの旦那に会いに行こう) is a song sang by Brook, as the name suggests, on the Straw Hat Pirates' journey to meet Nekomamushi. It was sung in Chapter 814 and Episode 765, and is lengthened in the anime.

Trivia

 * The song is lengthened in the anime, repeating the phrase, ネコマムシの旦那に会いに行こう a few times.
 * Brook's voice actor, Chō, made-up a song about "going off to meet Nekomamushi". It impressed Oda enough that he decided to integrate Nekomamushi into the manga, as well as the song itself.