“Sometimes that breaks down and I forget the song. I have a teleprompter.”
Meanwhile, Paul admitted that he knows the level of his fame, but prefers to chat with fans instead of taking selfies with them.
He said: “I know I’m very famous but I don’t want to walk around like I’m very famous.
“I don’t like to take pictures when people say, ‘Can I have a picture?’ So I say, ‘I’m sorry, I don’t do pictures.’
“I sometimes feel like saying, ‘Look, I’m happy to talk to you. But the minute you put your arm around me, I feel like the monkey in Saint-Tropez.
“’Come and have a picture taken with the monkey’. And I don’t like that. It puts me off.”