There are several artists with this name:

1) Ay is side project from Komä French lead singer and guitar & keyboards player: Aymeric Ardimanni. Mainly electro, this project reaches other styles like folk, indie rock, psychedelic and space rock. Debuted in 2003 like a recreational activity, it became more serious in 2008 When Ay got his proper home studio. In 2009 he released his first solo album "Open" on Bandcamp. This second album "Shorelines" was released in 2017, also on Bandcamp.
https://aymusic.bandcamp.com
2) AY (real name Ambwene Allen Yessayah) is a Swahili hip hop (Bongo Flava) artist from Tanzania. Official website: http://www.ay.co.tz Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.