WaT began its musical activities from 2002 on the streets near Yoyogi Park and made their indies debut in November 2004. The following year, they released their single "Boku no Kimochi" which was their major debut work and achieved the record of being the No.1 fastest new artiste to make it to the Kouhaku since their debut. They made their solo music debut in 2007 and were focusing on their separate activities since then. It was only until 2010 that they released another single under WaT's name and they waited till February this year to announce that they were beginning to resume group activities again. The duo will release their best hits album titled "Sotsugyo BEST / WaT" on 10 February next year and follow up with a handshaking event at Tokyo's NEW PIER HALL to mark the finale of their group activities.