Though SID technically began in 2003, the band considers January 14th of 2004 the date of their 'birth' as it was announced at their show at the Meguro Rock May Kan that Shinji and Yuuya would be joining as official members. With their line-up now complete, they released their first single, Kaijou-Ban, in March before traveling overseas for a two-day performance at the American convention ACEN (Anime Central) in May. The young band made quite an impact, gaining a number of international fans, and they have since expressed their desire to return to America once more, someday.
2006 was a big year for SID: they broke into the Oricon top ten for the first time with their summer single, "Chapter 1", and they were able to play a one-man at the famous Nippon Budokan live hall. They finished the year with the release of their third album, play, and a new one-man tour that took them throughout Japan. The following year brought a slew of new singles, including September's "Mitsuyubi~MITSUYUBI~", which was the band's first to reach the Oricon top five. With a few months left in 2007, SID has shown little sign of slowing down as they recently announced their fourth single of the year and a tour to take place in spring 2008.
In early 2008, SID announced they would be going major with Sony Records and later put out "Monochrome no Kiss", their debut major single. The single’s title track was used for the opening of anime "Kuro Shitsuji" and the release was also available in four versions, one which was a special Kuro Shitsuji version featuring the two main characters on a cardboard sleeve. Their debut concert at Nippon Budokan sold out in under three minutes in November 2008.
Their next single, titled "Nidome no kanojo", came out in January 2009, and three months later "Uso” debuted at number two on the Oricon charts and was also used as the 1st ending theme of popular anime "Fullmetal Alchemist: Brotherhood" Their other recent releases also seem to be used for popular anime, so anticipate many more songs to be used for original soundtracks. Their first major album, Hikari, was released on July 1, 2009, and will serve as the primary set list for what will be their largest tour to date. Another single named, "One Way" was released on 11. November which reached 3rd in the Oricon Charts.
They got the Top Pop Artist Award from Billboard Japan Music Awards 2010 on February 6th,2011. Also they participated in Kuroyume's tribute album which will be released on February 9th "******** The Border Line", the song SID will do is "Yasashii Higeki" a song by Kuroyume that was released in 1995. They released a new Album on February 23rd of 2011 named "Dead Stock" which will contain titles such as "One Way", "Sleep", "Rain", "Cosmetic" and "Ranbu no Melody" and a month later on March 16th they will release their 6th dvd, "Sidnad Vol.6: Live 2010" containing video from Summer Festa 2010 at Saitama Super Arena and The Year End Climax 2010 at Tokyo Dome live, the dvd will also be available in 3D on Bluray.
SID have 4 members, they are:
Mao [マオ]
(Vocal)
Name: Yamaguchi Masao [山口正雄]
Nick Name: Maonyan
Blood type: AB
Date of birth: 23 October 1977
Place of birth: Fukuoka
Height: 173 cm
Weight: 54 kg
Cigarettes: Mild Seven Super Lights
Cologne: Aucun
Aki [明希]
(Bass)

Name: Ichiki Akihito [一木明仁]
Blood type: B
Date of birth: 3 February 1981
Place of birth: Tokyo
Height: 175 cm
Weight: 55 kg
Cigarettes: Marlboro Lights
Cologne: Anna Sui
Piercing: 25 piercings
Shinji [しんぢ]
(Guitar)
Name: Ninomiya Shinji [二宮真司]
Blood type: O
Date of birth: 8 February 1979
Height: 178 cm
Weight: 58 kg
Cigarettes : Marlboro
Cologne: Escada Ibiza Hippie
Yuuya[ゆうや]
(Drums)
Name: Shirato Yuuya [白土裕也]
Blood type: A
Date of birth: 9 December 1981
Place of birth: Chiba
Height: 180 cm
Weight: 60 kg
Cigarettes: Seven Star
Cologne: Gucci Rush