1) RINSE is an Australian indie/shoegaze band established in December 2012
http://www.facebook.com/rinseband
http://rinse.bandcamp.com
2) Rinse was an emo/hardcore band active in the mid 1990's, featuring ex-members of prevail, and members who would later play in bands like hassan i sabbah, forcefedglass, etc.
They released a Self-Titled 6-song 7" on Concurrent in 1996, and a song on a compilation 7" entitled From Stars Come Hearts on Witching Hour in 1997.
3) Rinse is the name of a grime MC from London, UK and a member of G-Fam unit.
http://www.myspace.com/rinsemusic
4) There is also a Dutch artist called Rinse, who is active in the freetek/tekno scene with the Acid Anonymous Soundsystem
http://aa.freetekno.nl/