There are three artists known as WAT. 1) Japanese pop duo 2) French electro rock band 3) Dutch punk band 1) WaT stands for Eiji Wentz (ウエンツ瑛士) and Koike Teppei (小池徹平). They met each other in 2002 and formed WaT, playing street lives with their guitars. Their debut single "Boku no Kimochi" came out in 2005. Wentz, who is half German-American and half Japanese, is also known as an entertainer and comedian. Koike is also known as an actor and can play the harmonica. "Boku no Kimochi" reached the second place on Oricon chart. Read more about WAT on Last.fm.