Singers Joe, Director in charge of the Foundation's program Yili committees, "says Jean wounded by a live bullet in the hand after 11 pm local time Saturday in the town of Delmas, outside Port-au-Prince.
The brother of Jean, and Samuel, were killed music. He said he does not and singers additional details.
Shooting comes on the eve of presidential elections in Haiti. Support fellow musician Jean Michel Martelly.
Can not be a spokesman for the Haitian National Police immediately for comment.