There are two artists with this name: 1) JOSY formed in 2010 as a four-piece guitarless pop-rock band in Tokyo, Japan. The band consists of four girls: Cumi (vocals, keyboard), Mami (keyboard, vocals), Nanohana (drums, flute) and Non (bass). They have an aggressive performance unlike from their cute looking style.
No guitars but a loud and edgy sound with funky keyboard. Think Levon Helm meets The Doors！