The R&B artist, 55, was convicted last September in New York of racketeering and sex trafficking crimes.

He had faced years of allegations and the judge on Wednesday said he had an “indifference to human suffering”.

Lawyers for the singer, whose real name is Robert Sylvester Kelly, say he will appeal.

Ahead of his sentencing, a handful of women took the stand to confront Kelly.

A woman identified only as Angela called the singer a Pied Piper who “grew in wickedness” with every new victim, while others who were not named testified he had broken their spirits.

“I literally wished I would die because of how you made me feel,” said one.

Dressed in prison khakis and dark glasses, Kelly declined to make a statement of his own and did not react as the verdict was handed down.

US District Judge Ann Donnelly said the celebrity had used sex as a weapon, forcing his victims to do unspeakable things and saddling some with sexually transmitted diseases.

“You taught them that love is enslavement and violence,” she said.

Federal prosecutors had recommended that Kelly be sentenced to more than 25 years in prison, given the seriousness of his crimes and “the need to protect the public from further crimes”.

But his lawyers called for a sentence of 10 years – the mandatory minimum for his conviction – or less.

They portrayed Kelly as growing up poor in a household rife with domestic violence and suffering sexual abuse from a young age.