Sean Kingston will spend 3½ behind bars, a judge decided Friday, for his involvement in a $1-million fraud scheme. His mom is serving 5 years for the same crime.

Kingston, 35, and his mother, Janice Turner, were found guilty in May of defrauding luxury businesses of more than $1 million.

A Florida jury convicted the hip-hop artist and his mother in a federal fraud case that centered on luxury goods, which prosecutors said that Mr. Kingston did not pay for.