There are multiple artists with this name:
1) A rock quintet from Finland.
2) A psychedelic band from Estonia.
3) Stella Zelcer, a 60’s pop singer from France.
4) An electronica artist from Ipswich, England.
5) An experimental band from Hamburg, Germany
6) Stella Maessen, Belgium’s participant at the 1982 Eurovision Song Contest.
7) An American indie / emo band from Nashville, Tennessee known as Stella-US
8) Stella Mwangi, a Norwegian hip-hop artist.