Sister Bliss (real name Ayalah Bentovim) is a British musician , producer and DJ. In the studio she is best known for her work with Rollo Armstrong creating and remixing hits by a number of artists.

She is also a member of the famous group "Faithless" which she formed in 1995 with Rollo and Maxi Jazz. Various others have been members and collaborators over the years including Jamie Catto, Zoe Johnston and, frequently, Dido Armstrong who is Rollo's sister and began her music career providing backing vocals for the band. Faithless tour extensively and while Rollo prefers to stay in the studio, Sister Bliss can be seen on stage with Maxi, attracting some of the biggest cheers with her anthemic keyboard riffs without ever saying a word.

Sister Bliss also is a hugely popular and successful club DJ, and when she is not touring with Faithless or working in the studio she attracts huge crowds wherever she plays.