After performing his own 'original' song 'Chico Time' on this week's show, it may have seemed like Chico had entertained and amused the nation once again, but at least one person didn't see the funny side. Spanish guitarist Chico Buarque recognised it as a shameless copy of his own 1960's hit. Buarque's lawyers are pressing for action that will see the X-Factor contestant pay royalties to the ageing artist, swear never to perform the song again, and swallow hemlock.