Andy Anokye was known by his stage name Solo 45 and had collaborated with stars such as Wiley and Stormzy when he was caught in 2017.

The 33-year-old was convicted of 21 rapes and five counts of false imprisonment by a court in the southwestern city of Bristol.

Judge William Hart told Anokye during sentencing that the rapper had "become addicted" to "perverted pleasure".

"You were part of a well-known collective -- Boy Better Know. The fellow artists from that collective have achieved great success," the judge said.

"They are in no way tarnished by your misdeeds which you carried out in a private way."

The grime collective was founded in London by musicians known as Jme and Skepta.

The Guardian newspaper said one of Anokye's victims testified that she was water-boarded.

"He put me on the bed and put a flannel over my face and poured a bottle of water over it, which made made feel like I was drowning," she said.

Another said she was stabbed in the thigh and held at knife point.

Anokye told the court that all the acts were consensual role play in a game called "catch me, rape me".

Police discovered videos of some of the incidents on Ankoye's phone after he was arrested on a rape complaint.