There is more than one artist with this name:
1. bis, a Scottish electro pop/twee band popular in the 1990s
2. bis, a Japanese pop-punk band.
3. BiS, a Russian rock band
4. bis!, a Dutch band
5. BiS, a Russian pop duo. - Formed in 1994, bis (written all in lowercase and taken from a previous bandname "Black Iron Skyline") were a Scottish band featuring Steven Clark (Sci-fi Steven) (vocals, guitar), John Clark (John Disco) (vocals, bass), and Amanda MacKinnon (Manda Rin) (vocals, keyboards).