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！

The band has released one single “The Ugly Duckling” (2011) and a mini album “Keep On, Shinin' On” (2011).

2) A german synth-pop/electronic artists from the eighties.

3) Younger half of sisters Mimi and Josy, winner of The Voice Kids Germany 2019. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.