Spokeswoman Cindy Tanenbaum said Jean, who was in Haiti, was shot in Port-au-Prince on Saturday -- on the eve of the country's presidential runoff vote.
The wound was superficial, she said.
The singer was taken to a hospital, treated and released.
"He is doing well," Tanenbaum said.
Haitians are choosing between a former first lady and a popular musician Sunday in the pivotal presidential runoff vote for a nation still recovering from a devastating earthquake and political turmoil.
Former law professor and first lady Mirlande Manigat faces singer Michel Martelly in the second round of presidential elections.
Final results of the runoff will be released on April 16, according to officials.
Jean, who was born in Haiti, shot to fame in the mid-1990s as a member of the Fugees, a U.S.-based hip-hop and reggae group. He now performs as a solo artist.
He has been an outspoken proponent of Haiti through his Yele Haiti Foundation and was one of the first celebrities to offer aid after the earthquake.
In September, he officially ended his bid to be president of Haiti a month after election officials ruled that he was ineligible to run.
Jean previously vowed to fight the Haitian electoral council's ruling that he was not a resident of the country.
His eligibility had been in question after claims that he had not lived in Haiti for five consecutive years prior to the election, a requirement in the nation's constitution.