Célestin came second in the first round election on 28 November, according to the country’s provisional electoral council. But the third placed candidate Michel Martelly, a popular singer who is also known as Sweet Mickey, accused Inité of fraud.
The first round results triggered violence across the country.
The United States, the United Nations said the results lacked credibility, and a mission from the Organisation of American States recommended Célestin be dropped from the second round in favour of Martelly.
Former first lady Mirlande Manigat came first. Martelly was only 7,000 votes behind President Réné Préval’s chosen candidate Célestin.