Served as the Scottish National Party Chief Whip at Westminster from 2001 to 2007 then became a Member of Parliament for Perth and North Perthshire.
He attended Moray House College in Edinburgh and also became a trained community worker.
For 15 years, he played keyboards for the Scottish rock group Runrig.
He was born in Dunfermline, Scotland.
He and Alex Salmond both became Members of Parliament for the Scottish National Party.