What's the most famous italian singer in the uk?

Hi everyone, my name is Camilla and i live in the northern Italy. I'd like to know what's the best known italian singer in the UK. Truly i'd like to know what do you think of Italy generally, i mean what do you think about italian policy, food and also music. I will accept all opinions equally, do like I'm not Italian. I'm 15 and i want to know how my country looks abroad,I know that probably there will be many negative comments about Silvio Berlusconi, but I can't help it if half of Italy voted in a freak. Thanks for reponses and sorry for my bad English.