Roger Charlery, known as Ranking Roger of The Beat and General Public, has died aged 56.
The Birmingham-born singer died on Tuesday at home surrounded by family, according to a statement on The Beat's website.
It said: "He fought & fought & fought, Roger was a fighter.
"Sadly Roger past away a few hours ago peacefully at his home surrounded by family.
"Roger's family would like to thank everyone for their constant support during this tough time. More to follow in the coming days. RIP ROGER!"
Charlery suffered a stroke last summer and was reportedly diagnosed with two brain tumors and lung cancer in recent months.
Musician and activist Billy Bragg was among the first to pay tribute to the musician, who played in bands with members of The Specials and Dexys Midnight Runners during his nearly 40-year career.
He said: "Very sorry to hear that Ranking Roger has passed away. Rest easy, Rude Boy"
The social media account for the reggae group UB40 posted: "R.I.P Ranking Roger, Big Love UB40."
Despite health challenges, Charlery released an album, Public Confidential, in January and finished a memoir.
