Sandaime J Soul Brothers are managed by Hiroyuki's talent agency LDH and are a part of the supergroup, Exile Tribe.

[11][12] Hiroyuki Igarashi, who debuted as a member of pop music group Zoo in 1989, first conceptualized the idea of a vocal and dance unit called Japan Soul Brothers in 1991.

J Soul Brothers halted activities following the departure of their vocalist Sasa in 2001, who wanted to pursue a solo career.

Nesmith and Shokichi, finalists of the Exile Vocal Battle Audition, were the first members to join the new generation in August 2007.

To select a main vocalist for the group, Exile monitored the contestants in the singing competition, Vocal Battle Audition 2.

Created by Exile's Hiro in 2006, the Vocal Battle Audition is held every few years to find new talents for their management agency, LDH.

[16] It was used as the opening theme song for the Japanese television drama Kenji Kijima Heihachiro and sold about 59,000 physical copies.

Despite the slow decline in sales, the group released their debut studio album, self-titled J Soul Brothers, to mild commercial success in June 2011.

[19] In July, 2011, LDH announced that Sandaime J Soul Brothers would perform the theme song for the Japanese television drama Rokudenashi Blues, a live adaptation of the manga series of the same name.

[24] At the end of the year, they appeared for the first time on the stage of NHK Kohaku Uta Gassen with their single "Hanabi.

"R.Y.U.S.E.I" gained media attention for its different approach, visuals and refreshing EDM style which earned recognition to Sandaime J Soul Brothers for the following months until their nomination to the Japan Record Award, later winning the highest honor and skyrocketing the group to mainstream success for its following year too.

[32] Besides, with their video album for live tour 2014 "Blue impact" released on the same day with "R.Y.U.S.E.I" in both DVD and Blu-ray, they became the third artists in history to gained three No.1 in the same week on Oricon's Charts.

[39] On July 8 Sandaime J Soul brothers was set to release their new single "Summer Madness" which was a collaboration with DJ and producer Afrojack.

[42][43] In early 2016, it was announced that a documentary film featuring the members of Sandaime J Soul Brothers would be screened in major theaters in Japan on 12 February.

The album track list includes previous singles; "starting over", "Storm Riders", "Summer Madness" and "Unfair World".

Following the album releases, both vocalists embarked in their first solo tours starting in August and ending in December of the same year.

In January 2019, it was revealed Sandaime J Soul Brothers would release a series of singles throughout the new year as well as a new tour under the same project, titled Raise the Flag.

The group premiered the music video for their first single "Yes We Are" on March 10 on a live press conference streamed worldwide across several social network services including YouTube, Facebook, Instagram, Twitter, Line, Weibo and LDH TV.

During the event Sandaime confirmed they would release three color-themed singles, the first one "Yes We Are" being blue-themed, while the following two would be themed after the colors red and white accordingly.

[56] On August 3, 2019, the group revealed their second and red-themed single "SCARLET" during another live press conference which was streamed worldwide on different platforms and reached a total number of 1.2 million viewers.

[57] The title track of the new single, "SCARLET", was co-produced by Giorgio Tuinfort and Afrojack while its music video was shot at the Studio City hotel in Macau.

It included all tracks from their previous singles, alongside "Tokyo" which is the theme song for the movie "Utamonogatari -Cinema Fighters project-".

[65] In compensation, Sandaime held a series of livestreamed concerts on the Japanese streaming platform AbemaTV from July to December.

[69] On December 31, the group took part in the livestreamed concert of LDH artists,LIVE×ONLINE COUNTDOWN 2020▶2021"Rising Sun to the World" .

In addition to being their first number one album, "Miracle" featured the critically acclaimed track "Hanabi" which would eventually earn Sandaime J Soul Brothers public notoriety and their first appearance at the prestigious NHK's year-end show Kohaku Uta Gassen.

Hanabi was written from a relationship's female perspective and it explores themes of break up, loss and coming-of-age represented on the summer season ending.

In addition, lead performer ELLY participated in the composition and recording of releases like "Feel So Alive" and "J.S.B Love", both tracks featuring hip-hop and EDM influences that bent the dynamic of the group more towards an urban sound.

Nike, All Nippon Airways, Samantha Thavasa and Glico are among many important brands and companies involved with public merchandising supported by the group.

In late 2015, members Hiroomi Tosaka, Naoki Kobayashi and Takanori Iwata were endorsed in a promotional campaign with Glico's Pocky product line.

The members formed the sub unit called THE Sharehappi from Sandaime J Soul Brothers and released the digital single 'Share The Love' as a commercial song for the endorsement.