Singer Joe Cocker, best known for his cover of The Beatles' With A Little Help From My Friends, has died aged 70.

The Sheffield-born singer had a career lasting more than 40 years, with hits including You Are So Beautiful and Up Where We Belong.

His agent Barrie Marshall said Cocker, who died after battling lung cancer, was "simply unique".

Sir Paul McCartney said he was a lovely guy who "brought so much to the world".

Cocker's friend Rick Wakeman, keyboard player for the rock band Yes, called his rendition of With a Little Help From My Friends "sensational" and said: "He had a voice that was just unique."