Mariah Carey Becomes Ambassador For Yum! Foundation

Mariah Carey will become a global ambassador for a hunger relief charity as part of the the United Nations World Food Programme, called the Yum! Foundation.

The singer will be named today (Thursday September 25) and will appear on posters in more than 112 countries advertising the campaign.

Yum! owns Pizza Hut, KFC and Taco Bell, so it's likely the posters will feature in these fast food chains.

On top of her involvement, Mariah Carey is also donating 25 cents from every download of her 'Love Story' song to the foundation, when it's purchased via FromHungerToHope.com.