Reggae superstar Jimmy Cliff has died at the age of 81, his family has announced.The musician, best known for the title track from seminal film The Harder They Come, died following a seizure after he came down with pneumonia, his wife Latifa said.A post to his Instagram page said: “It’s with profound sadness that I share that my husband, Jimmy Cliff, has crossed over due to a seizure followed by pneumonia.