US singer August Alsina has claimed Will Smith gave his approval for his wife Jada to have an affair with him.

Alsina has broken his silence - saying he had a year-long love affair with Will's wife Jada Pinkett Smith - saying her husband Will provided his full consent.

Despite Will and Jada denying the claims, 27-year-old Alsina claims Will gave him his blessing to enjoy a relationship with his wife.

The I Luv This S**t hitmaker, claims in an tell-all video that Will, 51, and his 48-year-old wife of 23 years, now have an open marriage.

August first reportedly grew close to the famous family after Will and Jada's eldest child, Jaden, 21, made the initial introduction.

BURBANK, CA - OCTOBER 22: Actors Jada Pinkett Smith (L) and Will Smith attend the Environmental Media Association 26th Annual EMA Awards Presented By Toyota, Lexus And Calvert at Warner Bros. Studios on October 22, 2016 in Burbank, California. (Photo by Rich Polk/Getty Images for Environmental Media Association)

It was no secret that August had formed a relationship with the famous family, holidaying in Hawaii in 2016 and later attending the 2017 BET Awards with Jada.

Lifting the lid on the alleged affair, August poured his heart out about his affection for Jada, during an interview with radio presenter Angela Yee, that he later posted to his own YouTube channel.

August said: "I actually sat down with Will and had a conversation due to the transformation from their marriage to life partnership … he gave me his blessing."

August Alsina
August Alsina made the claim in a new tell-all video

Speaking about the passionate ordeal that took over his life for years, he said: "I totally gave myself to that relationship for years of my life.

"I truly and really, really deeply loved her, and have a ton of love for her.

"I devoted myself to it, I gave my full self to it. So much so to the point that I can die right now and be ok with knowing that I truly gave myself to somebody.

Despite Will and Jada denying the claims, 27-year-old Alsina claims Will gave him his blessing to enjoy a relationship with his wife

"I really loved the person that I experienced that [with] and know what that feels like — if some people never get that in this lifetime."

Getting everything off of his chest, August elaborated on the lasting effect of his love affair with Jada.

He continued: "I'm shaking right now because it almost killed me. Not almost. It did — it pushed me into being another person, my newer self. It. Broke. Me. Down."

Despite August's bombshell version of events, representatives for the Smith family have completely denied all allegations, with a spokesperson stipulating that claims are "absolutely not true".

Daily Star Online have contacted representatives for Will Smith and Jada Pinkett Smith for comment.