Adı: Yanai Aiko
Sahne Adı: aiko
Mesleği: Şarkıcı
Doğum Tarihi: 22 Kasım 1975
Doğum Yeri: Osaka, Japonya
Boyu: 152 cm
Kan Grubu: AB
Hobileri: Banyo yapmak, uyumak, dalış yapmak ve köpekler.
Sevdiği Yiyecekler: Hardallı mentaiko, patates püresi, umeboshi.
Diskografisi:
Albümleri:
[1999.04.21] Chiisa na Marui Koujitsu (小さな丸い好日; Little Calm Good Day)
[2000.03.01] Sakura no Ki no Shita (桜の木の下; Below the Cherry Blossom Tree)
[2001.06.20] Natsufuku (夏服; Summer Clothing)
[2002.09.04] Aki Soba ni Iru yo (秋 そばにいるよ; Autumn is Beside Me)
[2003.11.27] Akatsuki no Love Letter (暁のラブレター; Love Letter of Daybreak)
[2005.03.02] Yume no Naka no Massugu na Michi (夢の中のまっすぐな道; Within the Dream, the Straight Ahead Path)
[2006.08.23] Kanojo (彼女; Girlfriend)
[2008.04.02] Himitsu (秘密; Secret)
[2010.03.31] BABY
[2012.06.20] Toki no Silhouette (時のシルエット; Silhouette of Time)
Best Albümleri:
[2011.02.23] Matome1 (まとめI; ConclusionI)
[2011.02.23] Matome2 (まとめII; ConclusionII)
Mini-Albümleri:
[1997.12.20] astral box (Indie)
[1998.05.30] GIRLIE (Indie)
Singleleri:
[1998.04.21] Hachimitsu (ハチミツ; Honey) (Indie)
[1998.07.17] Ashita (あした; Tomorrow)
[1999.03.03] Naki Mushi (ナキ・ムシ; Crybaby)
[1999.08.04] Hanabi (花火; Fireworks)
[1999.11.17] Kabutomushi (カブトムシ; Beetle)
[2000.02.17] Sakura no Toki (桜の時; Cherry Blossom Time)
[2000.09.20] Boyfriend (ボーイフレンド)
[2001.02.21] Hatsukoi (初恋; First Love)
[2001.05.30] Rosie (ロージー)
[2001.11.21] Oyasuminasai (おやすみなさい; Good Night)
[2002.04.24] Anata to Akushu (あなたと握手; I Shake Hands With You)
[2002.08.14] Kondo Made ni wa (今度までには; By This Time)
[2003.04.23] Chouchou Musubi (蝶々結び; Butterfly Union)
[2003.08.06] Andromeda (アンドロメダ)
[2003.11.06] Eriashi (えりあし; Nape of Neck)
[2004.04.28] Kaban (かばん; Briefcase)
[2004.09.01] Hana Kaze (花風; Flower Wind)
[2005.02.16] Mikuni Eki (三国駅; Mikuni Station)
[2005.08.03] Kirakira (キラキラ; Sparkle)
[2005.11.30] Star (スター)
[2006.07.12] Kumo wa Shiro Ringo wa Aka (雲は白リンゴは赤; Clouds are White, Apples are Red)
[2007.03.21] Ashita (re-release) (あした; Tomorrow)
[2007.05.30] Shiawase (シアワセ; Happiness)
[2007.08.22] Hoshi no Nai Sekai / Yokogao (星のない世界 / 横顔; World Without Stars / Face in Profile)
[2008.03.12] Futari (二人; Two People)
[2008.07.23] KissHug
[2009.02.18] milk / Nageki no Kiss (嘆きのキス; Kiss of Grief)
[2010.02.03] Modorenai Ashita (戻れない明日; Move on Tomorrow)
[2010.04.21] Mukaiawase (向かいあわせ; Face to Face)
[2011.05.11] Koi no Super Ball / Home (恋のスーパーボール / ホーム; Super Ball of Love)
[2011.11.23] Zutto (ずっと; Always)