The Corries

The Corries were a Scottish folk group that emerged from the Scottish folk revival of the early 1960s.  The group was a trio from their formation until 1966 when founder Bill Smith left the band but Roy Williamson and Ronnie Browne continued as a duo until Williamson's death in 1990.
They are particularly known for the song "Flower of Scotland", written by Williamson, which has become an unofficial national anthem of Scotland.