Singer Prince has died at his Paisley Park estate in Minnesota, his publicist told AP.
He was aged 57.
Police were called to a medical emergency at his estate earlier on Thursday, US media reported.
However, he appeared at a concert the next day to assure his fans he was okay.
His people said he was battling the flu.
Prince, born Prince Rogers Nelson, became a global superstar in the 1980s, with albums such as 1999, Purple Rain and Sign O’ the Times.
He sold more than 100 million records during his career.
He has won seven Grammy Awards, and has earned 30 nominations.
Five of his singles have topped the charts and 14 other songs hit the Top 10. He won an Oscar for the original song score to the classic film “Purple Rain.”
The singer’s predilection for lavishly kinky story-songs earned him the nickname, His Royal Badness. He is also known as the “Purple One” because of his colorful fashions.