Tachibana was originally one of the first three members of dream, chosen through a nationwide talent search held by
Avex Trax in 2000. When lead singer
Mai Matsumuro left the group, Tachibana was pronounced leader of the newly reformed eight-member group. She remained a member of the group throughout several major changes in members. In November 2010, Tachibana announced that she would be leaving Dream in 2011. ==Discography==