[Shaun]

Rihanna told television personality Piers Morgan to "grow a dick" after he criticised her new hairdo.

During her appearance as part of last night's (September 9) Paralympic Games closing ceremony, during which she performed with Coldplay on 'Princess Of China', Morgan tweeted to say: "I think @Rihanna needs to grow her hair back. Fast."

The singer responded to his comment by writing back: "grow a dick..... FAST!!!!"

Former newspaper man Morgan, who hosts his own Stateside talk show, Piers Morgan Tonight, then responded by asking Rihanna if she'd like to be interviewed on his show, to which she enthusiastically replied: "haaaa! Only if it's not about cosmetics! But ***** yea lets do it!!!!!!!!!"

Morgan brought the discussion to an end by writing: "Going to be one hell of an interview now @rihanna - bring your A-game, lady. #CNN"

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