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Origin Japan
Genres rock music
pop music
Years active 2002–2016
Labels Universal Music (A&M)
Website Universal Music Official Web Site
Members Eiji Wentz
Teppei Koike

WaT (pronounced "Watto" ワット, for Wentz and Teppei) was a Japanese pop duo composed of singers/songwriters Eiji Wentz and Teppei Koike. They met each other in 2002 and formed WaT, playing live street performances with their guitars. Their debut single, "Boku no Kimochi", was released in 2005. Wentz, who is half German-American and half Japanese, is also a TV personality. Koike is also known as an actor and can play the harmonica. "Boku no Kimochi" reached the second place on the Oricon chart.


Both of them play vocals and guitar. Wentz also plays the bass guitar and piano. Teppei also plays the harmonica and ukulele.



Their first independent single, "Sotsugyō Time", was released on February 18, 2004, under independent label and was later included on their first album.

Original Japanese title Romanized name Translation of title Release date Chart position
僕のキモチ Boku no Kimochi My Feelings 2005-11-02 2
5センチ。 Go Senchi. 5 cm 2006-01-25 2
Hava Rava 2006-08-02 4
Ready Go! 2006-11-01 1
ボクラノLove Story Bokura no Love Story Our Love Story 2006-12-06 4
夢の途中 Yume no Tochū Midway Through a Dream 2008-01-16 4
時を越えて~Fantastic World~ Toki o Koete: Fantastic World Pass Through Time: Fantastic World 2008-04-23 8
36℃ 36 do 36 Degrees 2008-10-29 5
君が僕にKissをした Kimi ga boku ni kiss o shita You Kissed Me 2010-07-29 5
24/7〜もう一度〜 24/7~ Mou Ichido 24/7: One More Time 2010-09-08 3


Original Japanese title Romanized name Translation of title Release date Chart position
卒業TIME ~僕らのはじまり~ Sotsugyō Time: Bokura no Hajimari Graduation Time: Our Beginning 2006-03-01 2
WaT Collection 2007-11-28 4
卒業BEST Sotsugyou BEST Graduation BEST 2016-02-10 7


Title Release date
WaT Live Tour 2008“凶×小吉=大吉TOUR”@日比谷野外大音楽堂 2008-07-30
WaT Music Video Collection 2008-05-28
WaT Entertainment Show 2006 Act "do" Live Vol.4 2006-04-26
My Favorite Girl-the movie- 2006-12-20

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