Nick Cannon will tweet about you - for $25,000

Mariah Carey's husband is looking for corporate sponsors to support his lavish 30th birthday plans - with one of the biggest 'bonuses' being getting a mention in one of his Twitter messages.

In an e-mail, representatives for the America's Got Talent host say: 'This is an extremely exciting opportunity to sponsor a fun and lavish event. Opportunities range from gift bags and signage to tweets and photo ops.'

A flier for the 'Nick Cannon Birthday celebration hosted by Mariah Carey' offers sponsors the chance to pay $2,500 to be in the gift bag, while a $15,000 donation includes 'one tweet' and 'mention in all p.r. materials'.

For $25,000 you can be a 'host sponsor' which includes 'three tweets', a 'right to service out photos'.

And that's just for one of two parties he is having - with a party planned in New York on October 8 and then one in LA the following night.

Confirmed guests are said to include Jay-Z, Beyoncé, Will and Jada Smith, Ashton Kutcher and Demi Moore, Quincy Jones, L.A. Reid and Jamie Foxx.

An insider said: 'He really doesn't need the cash. He's in his second year of hosting America's Got Talent, and Mariah's wealth has been estimated at $400 million. But they're well known for throwing lavish birthday bashes.'