Collaboration: Dream

Dream, formerly called DRM, is an all-female J-pop chorus group. In May 1999, the Japanese record company Avex Trax held a contest in the hopes of looking for new talent. After going through 120,000 Japanese contestants, Matsumuro Mai, Hasebe Yu and Tachibana Kana were chosen to form the new group "Dream". Many consider the first three girls as the first generation of Dream, which made its debut on January 1, 2000 with the single "Movin' on."

Dream consisted of those three members until July 7, 2002 when Matsumuro Mai graduated to a solo career. Six new younger members joined the group (Ai Risa, Abe Erie, Takamoto Aya, Nakashima Ami, Nishida Shizuka and Yamamoto Sayaka) which allowed people to draw comparisons between the "new Dream" and another Japanese pop group, Morning Musume. Dream remained an 8-member dance & chorus group until the graduation of member Risa Ai on March 28, 2004.

On June 25, 2007, the group decided it was time to have a makeover, and changed their name from Dream to DRM. The name reflects the change in the group itself, from a "young adolescence" image, to a "mature ladies" image.

On July 22, 2008, it was announced that Hasebe Yu had left DRM, and that the group was changing its name to Dream.