London, Jan 15 (IANS) American rapper and businessman Jay-Z likes people to criticise him because this helps him to stay grounded.

'The reason I am grounded is because I have allowed my friends to come with me and voice an opinion. They are not afraid to tell me what they think of me or my album,' contactmusic.com quoted Jay-Z as saying.

'People who don't know you, you don't know their motives. It's the people whom you know for ages keep you grounded,' he added.