1994

1. PIERROT was formed in Nagano.
2. Released "KIKURUI PIERO" in April.
3. The band members were: HIDELOW (Vocals), KIRITO (Guitar), JUN (Guitar), KOHTA (Bass) and LUKA (Drums)

1995

1. HIDELOW and LUKA left PIERO.
2. KIRITO became the Vocalist.
3. KIRITO invited AIJI (KALEN) to replace him as the guitarist and TAKEO (SUPER STAR) to be the drummer.
4. The band's LIVE activity was moved to Tokyo.
5. A LIVE was held at Meguro in April.
6. The audience got a free copy of their video single "HAKEN KRUEZ".

1996

1. The band held their first one-man LIVE in February.
2. Their first full album, "PANDORA NO HAKO", was released in July after the change of members.
3. They had their first concert tour in June~July.

1997

1. The first 'DICTATOR'S CIRCUS' @ Shibuya ON AIR WEST was held on 4 May.
2. The concert tour "CELLULOID HUMANISM" was held in July.
3. Mini album "CELLULIOD" was released in September.
4. The concert tour "CELLOID HUMANISM"-Gate- was held in November.

1998

1. The concert tour "'CELLOID HUMANISM"-Three Exit- was held in January:
   1st EXIT @ Nagoya Club Quatro 5th Jan
   2nd EXIT @ Umeda 6th Jan
   3rd EXIT @ Shibuya ON AIR WEST 8th Jan
2. Maxi single "SCREEN" released in April.
3. "DICTATOR'S CIRCUS II [ZWEI]"
4. Participated in SHOCK WAVE ILLUSION in June.
5. Participated in "BREAK OUT! MATSURI '98" in August.
6. Participated in "SWEET TRANCE 98 LIVE" @ BUDOKAN with SHAZNA, La'cryma Christi and Eins:Vier in September.
7. Last Indies Act "DICTATOR'S CIRCUS III [DREI]" @ Shin-Osaka Meeruparuku Hall on 7th Sep.
8. Last Indies Act "DICTATOR'S CIRCUS III [DREI]" @ Nagano Sun Plaza on 8th & 9th Sep.
9. Debut single "KURIA SUKAI" was released on the 10th and ranked #6 on Oricon Charts.
10. Tickets to their concert tour "The Base Of [MAD SKY]", in November, was sold out.
11. Single "MAD SKY ~Koutetsu no Meshia" was released in December and ranked #5 on Oricon Charts.
12. The band released their very first PV video, "PROTOTYPE" in December as well.

1999

1. Single "HARUKA../KANATA E was released in February
2. Separate single "HARUKA" released in March, was in line with the Anime "Shinpu Kaito Jeanne.
3. Final Scene of the "MAD SKY" tour took place in Nippon Budokan on 1st April.
4. PIERROT's official Fan Club, "ARLEQUIN" started on 1st April.
5. Single "RASUTO RETAA" released on 28th April.
6. First major album, "FINALE", was released on 7th July.
7. First LIVE video, "FILM - RISING A [MAD SKY] AT NIPPON BUDOKAN", was released on 8th September.
8. First virtual concert, "THE GENOME CONTROL" was held on 22th December.
9. Single "CREATURES" was released on 23rd December and ranked #3 on Oricon Charts.

++ The name "ARLEQUIN" was suggested by JUN. ++

2000

1. Single "AGITATOR" was released in June.
2. Made their first appearance on Hey! Hey! Hey! in June.
3. Concert "DICTATOR'S CIRCUS V @ SEIBU DOME was held on 23rd July.
4. Single "SHINKEI GA WARERU ATSUI YORU" to be released on 27th September.