Piers Morgan was overcome. Amanda Holden was on her feet, cheering. And Simon Cowell…well, he had a rakish grin on his face, and if human beings could purr, he would have purred. There were the ...

Electric string quartet Scala have been forced to change their name - because it belongs to a little-known female voice choir in Belgium. The girls, a favourite for tonight's semi-final, changed to ...