Ukeleke Onwubuya, better known as Ras Kimono has died, a close friend to the musician confirmed to Myjoyonline. Today would have been his 60th birthday.

Onwubuya died in Lagos Sunday. He cancelled a trip to the United States Saturday after falling ill, and was rushed to a local hospital, reports say.

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The legendary Nigerian reggae musician is best known for the critically-acclaimed hits “What’s Gwan,” and “Under Pressure.”

Celebrities and public figures are mourning Onwubuya’s death on social media. Heirs Holding chairman Tony Elumelu said the musician impacted his life.

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“I just heard the worst news that the Nigerian Reggae legend, and my cousin, #RasKimono has died. Ras had a huge impact on my appreciation of music & is one of the reasons I’m such a huge fan of the genre. I still remember his performance at our #HHchrismas party a two years ago,” he wrote.