EE Jump

EE Jump (stylized as EE JUMP) was a Japanese duo formed by Harmony Production in 2000. The duo's music was produced by Tsunku, with songs released through Toy's Factory. The members consisted of Sonim (lead vocals) and Yuki (rapper).

EE Jump became well known for their song "Otto Totto Natsu da ze!", which charted at No. 5 on the Oricon Weekly Singles Chart. However, after several scandals involving Yuki, the duo disbanded in April 2002.