As well as winning a slot performing in front of the Queen at the Royal Variety Performance, he will also bank a cheque for £250,000.
The 89-year-old told ‘This Morning’ he would be giving his winnings to his hospital and to his family: ”
“We’ve got a new centre that we’re wanting to build, a visitor centre, an activity centre – I’d love to think that I set the whole thing off.
“And of course I’ve got family and grandchildren who want to get on the property ladder.”
Mr Thackery sang his way through the competition, performing songs like ‘We’ll Meet Again’, ‘Wind Beneath My Wings’ and ‘Love Changes Everything’.
During his semi-final and final performances, he was also joined on stage by a chorus of his friends from the Royal Hospital Chelsea.
He will now perform at this year’s Royal Variety Performance.
After his final performance and speaking to the talent competition’s presenters Ant and Dec, Colin said he would “die happy” if he got to perform for the Queen