TAWAWA Natsu Bikini (TAWAWA 夏ビキニ; TAWAWA Summer Bikini) is a collaboration single with two members of the group THE Possible, Ose Kaede and Morozuka Kanami, and the soloist Tokito Ami. It was released on May 16, 2007 in two versions, a limited edition including a photobook, and a regular edition including a random photocard (1 of 3). The Single V was released on June 6, 2007. The single V reached #286 on the Oricon DVD charts and charted for one week selling 363 copies.