In 2007 Paul Potts won "Britian's Got Talent" with a performance of an aria from the final act of what Giacomo Puccini opera? 
Paul Potts:  In 2007, he won the first series of ITV's "Britain's Got Talent" with his performance of "Nessun dorma", an aria from Puccini's opera "Turandot". Nessun dorma: "Nessun dorma " (] ; English: "None shall sleep") is an aria from the final act of Giacomo Puccini's opera "Turandot" and one of the best-known tenor arias in all opera.
"Turandot"