5. 'I'd lure Osama bin Laden out of hiding with the irresistible scent of my new fragrance Circus Fantasy'

6. 'Every presidential news conference would feature costume changes'

7. 'If I was president America might have a more coherent fiscal strategy'

8. 'I would challenge US to put a nightclub on the moon by the end of the decade'

9. 'Three words: Vice President Diddy'

10. 'Finally, the media would pay some attention to me'

This is the first time the singer has appeared on the US TV talk show since 2006.