Kero! Kero! Kero! is the second studio album by Japanese a girl group eX-Girl, released on the PARANOIZ label in Japan (PAR-50020), and by KIKI Poo Records in the US. "Kero" is the sound a frog makes in the Japanese language , of. "ribbit" in English.

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Kero! Kero! Kero!
Studio album by eX-Girl
Released	March 10, 1999 (1999-03-10)
Recorded	November–December, 1998
Length	44:35
Label	Paranoiz
Producer	Hoppy Kamiyama
EX-Girl chronology
Heppoco Pou (1998) Kero! Kero! Kero! (1999) Big When Far, Small When Close (2000)

The line-up consisted of Chihiro, Kirilo and Fuzuki, and the album was produced by Hoppy Kamiyama.

Track listing

1. "Disco 3000" (Lyrics: Chihiro / Music: eX-Girl, Hoppy Kamiyama) – 6:43.
2. "PUYO" (Lyrics: Kirilo / Music: eX-Girl, Kamiyama) – 2:47.
3. "The Revenge of Kero Kero" (Lyrics: Fuzuki / Music: eX-Girl, Kamiyama) – 6:00.
4. "Tofu Song" (Lyrics: Chihiro / Music: eX-Girl) – 2:01.
5. "HAO☆HAO" (Lyrics: Fuzuki / Music: eX-Girl, Kamiyama) – 3:50.
6. "Dazzle" (Lyrics: Kirilo / Music: eX-Girl) – 4:59.
7. "Chin Chiku Linn Part II" (Music: eX-Girl, Kamiyama) – 0:48.
8. "Spaceman, Melon" (Lyrics: eX-Girl / Music: eX-Girl, Kamiyama) – 4:02.
9. "Space Mushroom" (Lyrics: eX-Girl, Kamiyama / Music: eX-Girl, Kamiyama) – 13:21.

Personnel

• Chihiro – vocals, electric guitar, acoustic guitar, Chromaharp.
• Kirilo – vocals, electric bass, Casiotone, Roland SH-101.
• Fuzuki – vocals, drums, metal, tambourine, gong, kengari.
• Hoppy Kamiyama – piano, SH-101, Emu II, metal, voice, Scum Tape from the Garbage, gram pot.
• Tomoko Umino – trumpet (M-3, M-9).
• Kunio Koizumi – trombone (M-3, M-9).
• Takerou Sekijima – tuba (M-3, M-9).

Production

• Hoppy Kamiyama – record producer.
• Yoshiaki Kondo – recording at Gok Sounds, Tokyo, mastering at Kojima Recording.
• Yoshiaki Kondo and Hoppy Kamiyama – mixing at Gok Studios, Tokyo (November 27, 28, 30, December 1, 1998).
• Kazvnori Akita – design.
• Jimmy Henda – photography.
• Keita Ikeda – photography.
• Hirohiko Nogami – photography.
• eX-Girl – illustration.
• Ayumi – translation.
• Noami Hamada (Isyoya) – costumes.
• Makoto Suzuki, Ryuji Kusakawa, Toko Ueno – label staff.