Two compilation albums were planned for release on August 15, one that includes a selection of Sakai's personal favorite songs, the other that includes favorites from her staff. A fan-selected compilation album is also planned for the fall. Two tribute concerts were held—one on September 7 at Osaka Festival Hall, and the other on September 14 at Tokyo Nippon Budokan. The two places were chosen because they were the first and last stops respectively of the "What a beautiful moment Tour" in 2004—the only tour that band has gone on. The tour was called "What a Beautiful Memory".