Christina Aguilera's World Hunger Relief PSA for Yum! Brands - watch

Christina Aguilera has filmed a public service announcement for Yum! Brands's World Hunger Relief campaign.

A behind-the-scene video was unveiled ahead of the PSA's official release this fall.

Aguilera said in the video: "I'm excited about my new PSA for Yum! Brands' World Hunger Relief effort this fall, using my voice for good to help feed millions of children who go to bed hungry every night."

She will lead Yum! Brands's new campaign for its World Hunger Relief effort that will benefit other hunger relief agencies.

The Voice coach became the global spokesperson for World Hunger Relief in 2009.

She is reportedly releasing a new single this month for her follow-up to 2010's Bionic.

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