2004–2006: Formation SiM was founded by MAH in November 2004 in
Shonan,
Kanagawa Prefecture, Japan. On November 4, 2015, SiM performed at the
Nippon Budokan for their
THE TOUR 2015 FiNAL -ONE MAN SHOW at BUDOKAN. Tickets were sold out.
2016–2018: The Beautiful People On April 6, 2016, the band's fourth album
The Beautiful People was released. On May 6, 2016, they appeared on the
Fuji TV television series
HEY! HEY! NEO! with the song "MAKE ME DEAD!". On May 11, 2016, SiM released the live DVD titled
WHO SAYS WE CAN NOT of their performance at "The Tour 2015 FiNAL -One Man Show at Budokan”, achieving a ranking of fourth on the Oricon weekly DVD chart and fifth on the Blu-ray chart. On September 25, SiM performed for the first time in the USA as a part of
Ozzfest meets Knotfest. On October 16, the final performance of the tour "SiM THE BEAUTiFUL PEOPLE Tour 2016 Grand FiNAL
Dead Man Walking" was held at the
Yokohama Arena. On February 22, 2017, SiM performed as the opening act on the "2017
One Ok Rock Ambitions Japan Tour" at Wakayama Big Whale. On April 7, 2017, the song "Let It End" was used as the opening theme for the anime
Shingeki no Bahamut: Virgin Soul. On December 6, 2017, SiM released their seventh single "A / The Sound Of Breath", which was used in the soundtrack for the video game
Yakuza Kiwami 2. On November 20, 2018, the band released the single "Diamond". On December 12, 2018, the band released the single "Lion's Den", which was used as the opening song for Japan's
Wrestle Kingdom 13.
2019–2021: Thank God, There Are Hundreds of Ways to Kill Enemies On November 3, 2019, the band released the single "Sand Castle" with Akkogorilla. On January 30, 2020, the band announced that their new album,
Thank God, There Are Hundreds of Ways to Kill Enemies, would be released on April 15, 2020. On February 11, 2020, the band released the single "BULLY". On March 17, the band released the single "Devil in Your Heart". On March 31, the single "BASEBALL BAT" was released. In April 2020, the band announced that the album's release date had been postponed to June 17, 2020. On May 11, the band released the single "CAPTAiN HOOK".
2022–present: Playdead In January 2022, SiM's song "
The Rumbling" was the opening theme for the anime
Attack on Titan: The Final Season Part 2. The single was released on February 7, 2022, coming just after the band moved to the
Pony Canyon record label. SiM performed in the US at
Crunchyroll Expo on August 6 and their sold-out headlining show on August 9, 2022. On September 21, the band released their new EP
Beware, containing four tracks including "The Rumbling". In March 2023, SiM's single "
Under the Tree" was used as the ending theme song for the part 3 of the anime
Attack on Titan: The Final Season. In August 2023, SiM joined
Dance Gavin Dance for the Jackpot Juicer US Tour 2023, during which SiM released their sixth studio album,
Playdead. In November 2024, SiM frontman MAH led the formation of the REDLINE DREAM BAND, a 29-member supergroup created to commemorate the conclusion of the REDLINE festival's 14-year run. The band features prominent members from Japan's rock scene, including vocalists from
FACT,
MAN WITH A MISSION, and
coldrain, as well as instrumentalists from
Crossfaith,
Crystal Lake, and Paledusk. The group is due to release a digital single on December 6, 2024, ahead of their participation in the festival's final event, REDLINE ALL THE FINAL, at Chiba's
Makuhari Messe. ==Band members==