The hugely popular and acclaimed musician Prince has died at his home in Minnesota at the age of 57, his publicist has said. Police were called to a medical emergency at his Paisley Park estate earlier on Thursday, US media reported. An investigation is underway. Prince 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. Born Prince Rogers Nelson in 1958 he was a prolific writer and performer from a young age. A singer, songwriter, arranger and multi-instrumentalist, Prince recorded more than 30 albums. His best known hits include Let’s Go Crazy…