Petroc Trelawny looks forward to the coverage of BBC Cardiff Singer of the World 2011. Twenty of the world's finest young opera singers come to Cardiff to compete in this biennial competition, each one hoping to walk away with the prestigious title.

This introduces some of this year's extraordinary vocal talent, finds out what has happened to 2009's winner Ekaterina Scherbachenko and hears from the competition's new patron Dame Kiri te Kanawa. Show less