He presented the BBC TV variety show The White Heather Club throughout the 1960s, and his song "Donald Where's Your Troosers?"
Even in early childhood, he loved imitating people and amazed his parents with impersonations of famous singers and actors.
Stewart's patriotic wearing of tartan and his use of stereotypical Scottish humour throughout the 1960s, echoed the music hall style and songs of fellow Scot Sir Harry Lauder.
This was a BBC Scotland television programme that existed as an annual New Year's Eve party (1957–1968), and also as a weekly early-evening series (1960–1968).
On the strength of this comedy hit, Stewart toured Australia and appeared on The Ed Sullivan Show in 1968, doing impersonations of Dean Martin.
He wrote his first lyric at the age of 14 (to a tune composed by his father) and called the song "My Hameland", which in 1969 (21 years later) became the title track of one of his albums.
Scotch Corner, a Scottish television series (1972–1976) featured Andy Stewart and various guest singers and musicians.
Marketed as a novelty song ideal for Christmas parties, it was actively promoted by BBC Radio One DJ Simon Mayo and reached number 4 on the UK Singles Chart.
In 1993 a summer season at the Capitol Moat House Hotel in Edinburgh was cut short because of a back injury.
Stewart died the day after a performance at a Gala Benefit Concert for Children's Hospice Association Scotland (CHAS) at Usher Hall in Edinburgh.
A large crowd gathered outside the church to pay their respects to "The Tartan Trooper", while a piper played "A Scottish Soldier" and "The Battle's O'er".
His son Ewan Stewart is an actor, whose film and television credits include Rob Roy, Titanic, Valhalla Rising, Only Fools and Horses and River City.
Stewart's grandson Harris Beattie played the title role of Billy Elliot in the eponymous West End production.