The Overtones singer's death was sadly announced by his fellow band members on 11 April with the circumstances around his death still unknown.
He had been planning a skydive for charity in the coming weeks.
In 2016 the group toured with stage show That's Entertainment and then A Christmas Tour later that year, but Timmy was forced to pull out after his skin cancer diagnosis. "Family and friends are devastated at the news and have requested privacy at this very hard time".
He added: The first step in my treatment was lymph node surgery under my right arm.
Farranree Youth Club, which Matley was a former member of, paid tribute to him online: "It is with great sadness we have learned the passing of our dear friend and former member Timmy Mately".
Matley joined The Overtones, originally called DYCE, in 2010.
The five-piece vocal harmony group were discovered by a talent scout, who heard them singing while working as decorators on Oxford Street in central London. The doo-wop band's debut, Good Ol' Fashioned Love, reached number four in the United Kingdom charts, and has sold nearly half a million copies since its release in 2010. Such a loss! Here for you guys x anything you need xx'.
TV presenter Rylan Clark-Neal tweeted: "Awful news".
Elsewhere one fan wrote: 'Absolutely devastated to hear that @TimMatley has passed away!
Another added: 'RIP @TimMatley @the_overtones I'm absolutely devestated.
The chuffed northerner cheekily replied: "I would just love to see you". Will always love your music and it will live on.
"Heaven has gained the most handsome singing angel".
'Our thoughs and prayers are with his mom Gearldine and sister Audrey at this heart breaking time.Heaven has gained the most lovely singing angel.
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