He’s been a band frontman, a solo artist and a musical theatre star in productions including Chicago, Chess and The Witches of Eastwick.
Pellow now performs without the other members of Wet Wet Wet, having toured off and on with them over the years, but splitting permanently in 2017.
The band formed in1982, comprising Clydebank High School pals Tommy Cunningham, Neil Mitchell and Graeme Clark.
“I think that youth and arrogance is a heady mixture,” Pellow said.
“If you have a dream or a vision and you get one other person that’s subscribed to it… two, it’s a hard one, three and four and five – then it’s a power of the collective and it starts to work.
“And I think that’s where it is, self-belief and hopefully a plan and having a God-given talent that you can nurture.”
After every achievement, the group would set a new dream and push the limits.
“When I was sitting on the banks of the river, I was watching those ships sail out the River Clyde.
“I’d look at the back of those ships and it would say, Sao Paolo, or Argentina, or Brazil and I think, I wonder if I’ll ever get there.
“Well, I didn’t get there by building ships. I got there by building songs, and that’s what took me round the world.”
His parents were supportive, but could only help him up to a point.
He said: “My dad was scared because he didn’t know a man who could get me on Top of the Pops.”