Kelsey added: We are truly thankful for the outpouring of love and support and ask that we all unite to ensure Tom's light continues to shine for his beautiful children. Thank you to everyone who has supported in his care throughout, he fought until the very end. I'm forever proud of you."
Tom first found fame back in 2009 alongside members Max George, Siva Kaneswaran, Jay McGuiness, and Nathan Sykes and as part of The Wanted and sold more than 12 million records worldwide.
The band reunited towards the end of 2021 for a special Stand Up 2 Cancer concert at the Royal Albert Hall in London alongside the likes of McFly, Ed Sheeran and Sigrid before reuniting for a Greatest Hits tour at arenas around the UK and ended just weeks ago.
His death comes just days after the pop star announced he was working on a memoir that is due for release this July.
He wrote on Instagram: "Hi, I'm Tom Parker, a lot of you know me as one fifth of The Wanted, but I am also a father, a husband, and a son, that's battling brain cancer.
"My book, coming this July, is not about dying: It's a book about living. It's a book about finding hope in whatever situation you're dealt, and living your best life no matter what."