On March 28 and 29, 2008, Sugizo played at X Japan's two reunion concerts as a stand-in along Wes Borland and Richard Fortus for the deceased hide. In April, he took part in Juno Reactor's European tour. On May 2, he reunited with Luna Sea again at the "hide memorial summit", a two-day concert in memory of hide, at the Ajinomoto Stadium. On July 23, Sugizo released a greatest hits compilation album titled "Cosmoscape". The album featured various music genres, such as rock, trance, jazz, classic, bossa nova, among others, and spans his ten years of solo work. During the year, Sugizo wrote a song titled "Enola Gay", named after the Boeing B-29 bomber that dropped the atomic bomb on Hiroshima. He wrote the song to convey his feelings and thoughts toward the people who suffered from the aftermath of nuclear war, and to the cities of Hiroshima and Nagasaki. As well, that the bomb never must be dropped again, and as his live supporting drummer Greg Ellis is American, singer Origa Russian, and him Japanese, that people from former enemy states can be friends.