The two-time Grammy-winning singer said he was “working hard to accelerate” his recovery but the diagnosis and surgery meant he had to take a “temporary break from touring”.

US singer Michael Bolton says he is recovering at home after a successful operation to remove a brain tumour over the Christmas period.

The 70-year-old star said in a statement posted Friday on Instagram that “just before the holidays, it was discovered that I had a brain tumor, which required immediate surgery.”

“Thanks to my incredible medical team, the surgery was a success. I am now recuperating at home and surrounded by the tremendous love and support of my family,” he said.

Bolton added in the social media post: “For the next couple of months, I will be devoting my time and energy to my recovery which means I’ll have to take a temporary break from touring.”

The two-time Grammy-winning singer had been due to go on tour in February with dates planned in the US, UK, Canada, and Switzerland. It is not yet known whether Bolton will be able to headline the London O2 Arena with guest Bonnie Tyler on 25 July as scheduled.

“It is always the hardest thing for me to ever disappoint my fans or postpone a show, but have no doubt I am working hard to accelerate my recovery and get back to performing soon,” Bolton wrote to fans.

“I am beyond grateful for all the love and support you have so generously shown me through the years. Know that I’m keeping your positive messages in my heart, and I’ll give you more updates as soon as I can.”

Bolton has sold more than 75 million records and is best known for hits such as How Am I Supposed to Live Without You, When a Man Loves a Woman, and Said I Loved You... But I Lied.

The singer-songwriter has also acted in television shows such as The Nanny, Glee, and Awkwafina is Nora from Queens. He competed last year on the US version of TV celebrity talent show The Masked Singer.