Route θ were a Korean-Japanese duo group who debuted in Japan in 2002. The members, Choi Sooyoung and Marina Takahashi were 13 years old at the time.
The group released three singles: "Waku! Waku! It's Love","Start", and "Painting", and 3 B-Sides : Go Go Happy!!, Kimi Ni Ae Ta Kara (君に会えたから) and Onna No Ko Magic (女の子マジック).
The group was later disbanded in 2003, with Sooyoung going on to train under SM Entertainment in Korea and redebut in 2007 as a member of the nine member Kpop group, Girls' Generation.