Max Matsuura
sixxxxxx is the sixth extended play by Japanese recording artist and songwriter Ayumi Hamasaki. The EP was released on August 5, 2015 by Avex Trax and was produced by long-time collaborator Max Matsuura. With all the tracks written by Hamasaki herself, the EP features five original tracks and one hidden track to commemorate the "six" tracks. It was released as a stand-alone CD, a CD and DVD bundle and a CD and Blu-ray bundle.