Crazy Rainbow

Crazy Rainbow, also known as Crazy Rainbow Star, is a song used for the eighth opening intro of the One Piece anime. It is sang by Japanese idol duo, Tackey and Tsubasa.

Opening
A beach shows with the missing letters of the word "ONE PIECE" before going to the title then the Going Merry sailing in the sea. It features the Straw Hat pirates with the Going Merry arriving in an enclosed island. Luffy is seen in excitement, Nami and Robin shopping with Chopper as the holder, Zoro sleeping on a bench, Luffy and Usopp, amazed with the islands products and especially Sanji falling in love with a girl. Nami and the others enjoys the island's beach when Luffy starts to jump in the water which surprises Nami. Everyone coordinate in preparing lunch (except for Luffy whose playing with the Monkeys). The Straw Hats was shown one by one followed by Mihawk, Ace and Shanks. A pirate ship arrives with the name in the sail "GAHOOOO" and a lion jolly roger. The ship suddenly launches an attack which is countered by Luffy, Zoro, and Sanji, then Luffy uses the combination of Gomu Gomu no Rocket and Gatling to break the ship apart. The Straw Hats enjoy the beach when suddenly a Dinosaur appears before them chasing the Straw Hats away with Luffy in amazement. The Going Merry is seen traveling the map. The hills and the beach that was shown before the title made a second appearance but now in its daylight. It also shows the places where the Straw Hats made their appearances. Then the Straw Hats again, The ship's flag made its appearance.

Trivia

 * At the first FUNimation convention, the representatives present had shown this introduction, thus making it the first Japanese intro to be used under FUNimations dubbing. In note of the event, when the introduction was finished playing the representatives present then asked the audience if they would like to hear the 4Kids intro again upon which they were met with a loud "No!".
 * This opening does not use any footage from the actual episodes.
 * At the end of the opening, a red inner tube can be seen with the logo of the company Criminal.
 * The duo were even animated into the opening (When Crazy Crazy Rainbow Star is heard for the first time, and Nami with Robin are walking down the street, the duo's faces are next to Usopp and Luffy. Also when the whole crew is at some kind of mountain with a red bird drawn by Usopp, they can be seen in the background next to Nami) in Episode 303, which aired April 1, 2007.
 * The Color Spreads from Chapter 186, Chapter 226, Chapter 241, and Chapter 379 can all be seen in the opening.