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At the semi-final , they performed an instrumental version of " Live And Let Die " by Paul McCartney and Wings , receiving a positive reaction from the judges , with Piers Morgan describing it as " the best performance of the week " .
 Piers Morgan
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Piers Morgan