GReeeeN

GReeeeN is a Japanese vocal pop/hip hop band that formed in 2002. They have collaborated multiple times with the One Piece franchise for shows and merchandise, starting in 2017 with One Piece Live Attraction: Phantom at Tokyo One Piece Tower. Most recently in 2022, One Piece author Eiichiro Oda designed personas for the band's four anonymous members.

Oda's Designs
On May 14, 2022, GReeeeN and Oda revealed four original personas for the band's next tour, GReeeeN and the Mysterious Great Escape, based on each member:
 * 92 is depicted as a tall, blue-ish grey robot with yellow eyes, broad shoulders, slim legs, large wrists pink and green wrists, and pinching claws. He wears a multicolored shirt; the left half is blue with pink blotches, and the right is yellow with green blotches. 92 also wears green pants, green shoes, and a green baseball cap with a white-rimmed, yellow emblem on the front, branded with the number "92". Over his hat, he sports grey and red headphones that are also branded with "92".
 * Hide is depicted as a short, slim man with fair skin, a thin nose, long eyelashes, and large, round eyes. He has yellow hair and the letter "G" tattooed beneath his left eye. Hide wears a green suit with grey buttons and a red collar, red shoes with gold buckles, and a green, orange, and white beaded necklace. He also wears a pink helmet with massive horns coming out of the sides and a pair of beige, square goggles on the bowl of his hat.
 * Navi is depicted as a slim man with fair skin, long legs, large hands, and blue-and-white spiky hair. He wears blue and pink sunglasses, a light blue shirt, blue boots with pointed toes, and a green-and-white pinstripe suit and matching hat with a single yellow stripe down the left side. His jacket had rounded, flowery white cuffs, and he wears a light blue rose on his left breast. Navi also carries a long grey microphone.
 * Soh is depicted as a large, green beast with a long torso, thick neck, spotted and striped yellow tail, and large forearms and hands. He also has a small nose, small feet, short legs, and large canine teeth. Soh wears a golden chain necklace with a cross on it, green pants, yellow shoes, and a yellow baseball cap with a long brim and a ring pierced into the side. He also wears a yellow-and-white, short-sleeved shirt with pink and red stripes at the bottom and a design showing two fish biting a brown tower with a grey roof, with an orange cloud on the left and a brown cloud on the right. Oh his left wrist, Soh wears a yellow beaded bracelet, a thin red bracelet, and a thin purple bracelet. On his right wrist, he wears a thin blue bracelet and a blue-and-yellow beaded bracelet. Soh has his name, spelled vertically, tattooed onto the front of his neck, with a winding pattern trailing off the sides.

Tokyo One Piece Tower
For One Piece Live Attraction: Phantom, GReeeeN contributed two theme songs to the show: 4 ever Dawn!!!!! (4 ever ドーン!!!!!) and PHANTOM ~Promise~ (PHANTOM～約束～). The band's colors influenced Oda's design of the show-original character Ann. The show and an accompanying special exhibition began on April 22, 2017.

This collaboration was the focus of Season 1 of the One Piece 20th Anniversary Log Gallery, with the theme of "Friends." It showcased original reproductions of famous One Piece scenes, as well as a selection of scenes chosen by GReeeeN with their own comments, titled GReeeeNIsland. 4 ever Dawn!!!!! played throughout the exhibit, and a special handwritten lyrics card was featured exclusively in the exhibit. Luffy x GReeeeN promotional products were also released, including posters, notebooks, lanyards, and clear files.

To celebrate Tokyo One Piece Tower's third anniversary, a commemorative volume was released in March 2018. In Volume 333, Oda and GReeeeN discussed the show and their collaboration in a column section. This exchange included a recounting of the first time the author and musicians met and the inspirations behind the theme songs and Ann's design.

LINE
As part of a widespread LINE promotion effort, GReeeeN designed a collection of LINE stickers based on One Piece, released on July 22, 2020. Fans could buy the set of 24 virtual stickers, drawn by the band members, for ¥250 and send them to others in LINE messages.

The stickers feature the following characters:

Merchandise
GReeeeN cross-promotions occurred in two products. The first is a World Collectable Figure set, GReeeeN Special Assortment, released on October 27, 2020 by Banpresto. The set features doctors from One Piece holding flags with GReeeeN's logo on them: Marco, Hiriluk, Tony Tony Chopper, Kureha, Trafalgar Law, and Crocus.

The second is the Chopper Figure Challenge from GReeeeN! figure, announced on April 24, 2020 and released in late November 2020 by Toei Animation. It was designed by Shintaro Takahashi of Zero Studio. It features Chopper and Miyagi reading medical textbooks with pages ripped out for prominent doctors from the series. Chopper is jumping in the air and holding a sakura branch while Miyagi looks up at him.

Trivia

 * Because GReeeeN's album featuring 4 ever Dawn!!!!! and PHANTOM ~Promise~ is called “Roots of D,” a fan asked Oda if the band would be inheriting the Will of D. Oda joked that Hide, who wrote the songs, apparently knew what the “D” stood for.