J. J. Ann, whose real name is Juliette Jeanne Ann Sineux, is a French singer-songwriter and musician.
Hailing from Paris, Juliette is passionate about sound design and synthesizers. She composes, accompanies and sings for various bands and artists, shifting between styles ranging from rock, folk and hip-hop to jazz, French variety and electronic music. These varied experiences have helped her broaden her technique and strengthened her desire to explore new sounds. She has also begun composing music for film and other artists and has been involved in a number of audiovisual productions (Eurosport, Wag Productions).