It was a feature of Friday mornings at Manchester United's Carrington training ground that Sir Alex Ferguson would bounce down the stairs singing one of his favourite tunes, have a joke with Kath Phipps - the club's beloved receptionist - and then speak to the media about that weekend's match.
By Ferguson's own admission, he wasn't the greatest singer.
But music has always been a key part of the legendary former United manager's life.
Now it is more important than ever for Ferguson.
Through his increased involvement with dementia charities, he can see the benefits music can have for those - including his brother Martin - dealing with the syndrome, which leads to memory loss and can also affect the way people speak, think, feel and behave.
"My staff would know I was in the building when I came in the morning," Ferguson, 83, tells BBC Breakfast.
"I don't think they liked it... 'Here he comes, close the doors.'
"I think it's just part of you. If I'm in the shower, wherever, singing is part of me."
Ferguson is discussing the subject of music and dementia to coincide with National Playlist Day.
He is at a Cheshire hotel meeting Mil and Ken Simpson - a couple in their 80s, and part of a family of United season ticket holders. Mil, 89, has been living with dementia since 2010 - three years before Ferguson retired.
Music has played a big part in Mil and Ken's lives, and they attend several weekly groups that provide music, singing or dance for those affected by dementia.
Ferguson first told Breakfast of his concerns about dementia 12 months ago.
The response was overwhelming and persuaded him to devote more time to the issue. He is now an ambassador for the Playlist for Life charity.
"It caught me a real bit," he says. "I've got myself involved a little bit more.
"Music has an important role for dementia sufferers and we must continue that. You don't need to be a great singer to join in, just to know the words. It's wonderful."