Yum! Brands parent company of KFC, Pizza Hut, and Taco Bell, is launching its annual World Hunger Relief campaign to help stop world hunger, with Grammy Award winner Christina Aguilera lending her voice as the effort’s global spokesperson.

World Hunger Relief is the world’s largest private sector hunger relief effort, spanning 110 countries, 36,000 KFC, Pizza Hut, Taco Bell, Long John Silver’s, and A&W All-American Food restaurants, and over one million employees, to raise awareness, volunteerism, and funds for the United Nations World Food Programme (WFP) and other hunger relief agencies.

Aguilera is raising awareness of the hunger issue by appearing in the World Hunger Relief campaign’s new global public service announcement and advertisement that will start airing at the end of September.

Aguilera will also appear in World Hunger Relief restaurant posters with the quote, “Together, we have the power to save lives and go from hunger to hope.” She will also be included in online efforts, including on the campaign’s Web site. Consumers can log on to the campaign’s Web site or go to any KFC, Pizza Hut, Taco Bell, Long John Silver’s, or A&W All-American Food restaurant to donate.

“As a society, we should not tolerate that global hunger is worse than ever this year with more than 1 billion people going to bed hungry every day,” says David Novak, chairman and CEO of Yum! Brands Inc. “We are thankful for Christina’s passion to join us in the fight against hunger and help us raise attention to this critical issue and save millions of lives. We believe it is our privilege and responsibility to find a meaningful solution to this problem.”

Novak, the presidents from KFC, Pizza Hut, and Taco Bell, other senior executives, and franchise leaders traveled to El Salvador in August to see WFP’s relief efforts. Yum announced that it will donate the first $1 million it raises this year to El Salvador.

Yum is also co-leading the Business Council to End Global Hunger. The new effort will encourage trade associations, companies, and other private sector entities in the U.S. to support the Roadmap to End Global Hunger—an advocacy initiative laying out a comprehensive strategy for the U.S. government to set the stage for a permanent end to global hunger and poverty.

“WFP knows how to reach those most in need and will do what it takes to get a cup of food to any kid in the world,” says WFP’s executive director, Josette Sheeran. “But without funding, we can’t reach these kids. It takes just 25 cents to fill a cup with food. The World Hunger Relief campaign helps fill the cup for tens of thousands of kids—and we’re so grateful for it.”

World Hunger Relief kicks off its month-long campaign in the U.S. starting September 24 (Long John Silver’s/A&W All-American Food), September 27 (Pizza Hut), September 28 (KFC), and October 8 (Taco Bell). The Yum! Foundation will be covering WFP’s administrative fee so that funds collected online and at its restaurants will go directly towards feeding poor school children in the developing world and helping villages become self-sustainable. Every U.S. dollar raised will provide four meals for hungry children.

At the Clinton Global Initiative last year, Yum! Brands was recognized for its hunger relief efforts. Over a five-year span, the Company pledged to: raise and donate at least $80 million to help WFP and others provide 200 million meals for hungry school children in developing countries; donate 20 million hours of hunger relief volunteer service in the communities in which it operates; donate $200 million worth of its prepared food to hunger agencies in the United States; and use the Company’s marketing clout to generate awareness of the hunger problem, and convince others to become part of the solution.