Christina Aguilera and Muhammad Ali PSA Video

On Tuesday we brought you behind the scenes as sports icon and global humanitarian Muhammad Ali and multi-Grammy winner Christina Aguilera filmed a new Haiti relief effort PSA. Now we show you the final product!

Appearing together in a new public service announcement, the duo are teaming up to raise funds for the United Nations World Food Programme (WFP) Haitian relief effort. Donations will go directly to WFP's efforts to get food to survivors of Haiti's devastating earthquake.

The PSA urges viewers to donate $5 by texting FRIENDS to 90999 or visit www.fromhungertohope.com. Your donation of $5 will feed 20 hungry children in the earthquake-ravaged country, according to the WFP.

Aguilera is also the spokesperson for Yum! Brands World Hunger Relief, the world's largest private-sector, hunger-relief effort that is underwriting the PSA.

"I'm devastated by the toll that the earthquake has taken, and as a mom, I am especially heartbroken by the children and families affected," Aguilera said. "My goal for the PSA is to inspire as many people as possible to donate to the World Food Programme so they can continue to feed the survivors in Haiti and move them from hunger to hope."

"The earthquake and the aftershocks in Haiti are among the worst tragedies of our lifetime," Muhammad Ali said of the tragedy. "I urge people from around the world to open their hearts and give anything they can to help the World Food Programme's relief efforts in Haiti."