Striker who was a member of Scotland's national team from 2001 to 2013. He has also played for the Scottish Premiership club Rangers, Vancouver Whitecaps FC and Cardiff City.
He began his youth career with Hibernian at age 17.
He helped both Celtic FC and the Rangers win Scottish Premier League titles.
He married Laura O'Donnell in 2010.
He was teammates with Barry Ferguson on the Rangers and Scotland's national team.