The rapper Coolio, best known for his 1995 hit Gangsta's Paradise has died at the age of 59.
His manager said he was visiting a friend's house in Los Angeles when he apparently suffered a heart attack.
Real name Artis Leon Ivey Jr, Coolio emerged onto the LA rap scene in the 1980's, but it was Gangsta's Paradise that propelled him to international fame and earned him a Grammy for best solo rap performance.
The song reached number one on the US Billboard charts and stayed there for three weeks.
He was nominated for five other Grammys during his career, which began in the late-1980s.
His hit Fantastic Voyage reached No 3 on the Billboard Hot 100.
US rapper Vanilla Ice said he was "freaking out" following reports of Coolio's death.
"I'm freaking out I just heard my good friend Coolio passed away," the rapper, real name Robert Matthew Van Winkle, tweeted.
Former NWA star Ice Cube said: "This is sad news."
The rapper, real name O'Shea Jackson Sr, tweeted: "I witness first hand this man's grind to the top of the industry. Rest In Peace."
MC Hammer described Coolio as "one of the nicest dudes I've known".
"Good people. RIP Coolio," he wrote. He also shared a black and white picture of the rapper. He later posted a second picture of the pair together, along with Tupac and Snoop Dogg.
Snoop Dogg wrote: "Gangstas paradise. R I P." He shared a picture of the two of them on Instagram, posing on the set of the music video for their collaborative 2006 track Gangsta Walk.
Musical comedian Weird Al Yankovic paid his respects by sharing a picture of the pair embracing and adding: "RIP Coolio".
He parodied Gangsta's Paradise as Amish Paradise, though at the time it was claimed Coolio had not given him permission to do so. Coolio stated in interviews the pair had since made amends.
Born in Monessen, Pennsylvania, Coolio moved to Compton, California, where he went to community college. He worked as a volunteer firefighter and in airport security before devoting himself full-time to hip-hop and releasing his first single in 1987.
He recorded Gangsta's Paradise for the 1995 film Dangerous Minds starring Michelle Pfeiffer.
He also provided the opening track Aw, Here It Goes! for the TV series Kenan & Kel.
The rapper came third in the sixth series of Channel 4's Celebrity Big Brother in 2009.
Police sources told entertainment site TMZ no drugs or drug paraphernalia were found at the scene of Coolio's death.
It reported paramedics were called to a house in Los Angeles around 4pm for a medical emergency and when they got there they pronounced Coolio dead.
Police have opened a death investigation but there did not appear to be any signs of foul play, the site added.
(c) Sky News 2022: Gangsta's Paradise rapper Coolio dead at 59
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