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.
The line-up consisted of Chihiro, Kirilo and Fuzuki, and the album was produced by Hoppy Kamiyama.
- "Disco 3000" (Lyrics: Chihiro / Music: eX-Girl, Hoppy Kamiyama) – 6:43.
- "PUYO" (Lyrics: Kirilo / Music: eX-Girl, Kamiyama) – 2:47.
- "The Revenge of Kero Kero" (Lyrics: Fuzuki / Music: eX-Girl, Kamiyama) – 6:00.
- "Tofu Song" (Lyrics: Chihiro / Music: eX-Girl) – 2:01.
- "HAO☆HAO" (Lyrics: Fuzuki / Music: eX-Girl, Kamiyama) – 3:50.
- "Dazzle" (Lyrics: Kirilo / Music: eX-Girl) – 4:59.
- "Chin Chiku Linn Part II" (Music: eX-Girl, Kamiyama) – 0:48.
- "Spaceman, Melon" (Lyrics: eX-Girl / Music: eX-Girl, Kamiyama) – 4:02.
- "Space Mushroom" (Lyrics: eX-Girl, Kamiyama / Music: eX-Girl, Kamiyama) – 13:21.
- 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).