Three homicides in a five-hour span got the weekend off to a bloody start.

Ahmed Hoyt, 31, of Queens, was shot in the head during a dispute in Crown Heights, Brooklyn, cops said. Hoyt was partying at a home on 261 Troy Ave. at 10:26 p.m. Friday, when an argument spilled out onto the street.

Kevin Grant, 22, of The Bronx, was shot during a fight that broke out in front of a bar on White Plains Road at 3:30 a.m.

Kalif Canady, 22, was shot in the head at 1:17 a.m. yesterday near his car, parked near his home in Astoria Houses in Queens.