Butterfly is the twelfth album by the Japanese rock band L'Arc-en-Ciel. It was released on February 8, 2012, in two versions: regular and deluxe edition, with the latter including the tracks of the first album by their alter ego band P'unk-en-Ciel, titled P'unk Is Not Dead, and a DVD.^[1] The album was released in several European countries, starting on March 5, 2012, with the United Kingdom and finishing on March 17 with Spain and Poland.^[2]

The band's first studio album in four years, it includes all six singles (including one double A-side single) released between "Drink It Down" in 2008 and "Chase" in 2011.^[3] Butterfly debuted at number one on the Oricon chart, selling over 170,000 copies in its first week.^[4] It also debuted at number eight on Gaon Music Chart.^[5]

All lyrics are written by hyde, except track 6 on standard edition by yukihiro, and track 11 on deluxe edition by tetsuya.

Butterfly

• hyde – vocals, keyboards on tracks 1, 2 and 5
• ken – guitar, backing vocals, keyboards on tracks 1, 6-8 and 11, tambourine on track 3, vibes on track 5
• tetsuya – bass guitar, backing vocals, keyboards on tracks 3, 4, 9 and 10
• yukihiro – drums, keyboards on tracks 6 and 7, tambourine on 8, grancassa on track 11
• Rie Eto – backing vocals on track 1
• Akira Nishihara – keyboards on tracks 2, 4, 9 and 10
• Hajime Okano – keyboards on track 3, 5, 9 and 10, Q-chord on track 4
• Chieko Kanehara – strings on tracks 2, 4 and 5
• Shiro Sasaki, Teppei Kawakami – trumpet on track 4
• Kanade Shishiuchi – trombone on track 4
• Masato Honda – alto saxophone on track 4
• Takayuki Mogami – oboe on track 5
• Hikoutsu Fujita, Shingi Takahashi – horn on track 5
• Yuji Sugiyama – keyboards on track 7
• Takashi Kusama – keyboards on track 10

P'unk is Not Dead

• T.E.Z P'UNK – vocals
• HYDE P'UNK – guitar
• YUKI P'UNK – bass guitar
• KEN P'UNK – drums