Popular US Rapper, Grand Daddy I.U. Is Dead

Grand Daddy I.U., the popular US Hip-hop star, has died.

The rapper, who made a name for himself in the 90s, died at the age of 54.

The New York rapper was most known for his debut album Smooth Assassin, which he released under Biz Markie's label Cold Chillin' Records.

The rapper's representative, a woman named Raya, appeared on Instagram to speak on his death as well.

'No, I am not okay. I'm devastated,' she wrote in one of a series of posts shared on social media.

She added cryptically, 'Anyone who really knows me knows how much pure love and respect I had for him and out of respect for him and his family, I'm staying quiet right now.'

'I do not need to post pictures nor stories to profess anything. I pray for a peaceful and easy transition,' she continued.

The music artist's official cause of death has not yet been revealed. 

Grand Daddy I.U appeared on social media just days before news of his death broke.

He shared a video clip appearing on a friend's podcast and wrote in the caption: 'ON THE SET OF MY MAN T MONEY’S NEW PODCAST.'

Fellow rapper LL Cool J, also 54, was among the first to pay tribute to the star as he wrote online: 'Rest in power King. HipHop was in your DNA.'

He was also mourned by fellow rapper Pete Rock who wrote, 'Grand Daddy I.U. died peacefully in his sleep.'

The rap star, whose real name is  Ayub Bey, released his debut album Smooth Assassin in 1990.

His follow-up was called Lead Pipe and came out in 1994, after he and Biz Markie went their separate ways.

Stick to the Script, his third effort, was released years later in 2007, and just last year he debuted a single called Stay Fly.