There are multiple artists using this name:

1) William James McAuley III (born 18 July 1975), best known by his performing name, Bleu, is a Boston, Massachusetts musician. Bleu graduated from the Berklee College of Music in Boston, MA. Along with his solo work, he is the lead singer and songwriter of the Electric Light Orchestra-style power-pop band L.E.O., and has toured the United States and internationally with bands such as John Mayer, Puffy AmiYumi, Hanson, Guster, and Toad the Wet Sprocket.

Other projects are: The Major Labels, The Blizzard of '05 and LoudLion

2) A techno group.

3) A Quebec band.

4) An experimental ambient artist from Chapman, KS. His music can be downloaded for free from http://bleurkrds.tumblr.com/

5 an austrian jazz/improvised trio with:
Lorenz Raab - tp, flh, Ali Angerer - tu, e-dulcimer, Reiner Deixler – dr

6 a bedroom pop artist from st. john's, newfoundland: https://whoisbleu.bandcamp.com/