Pink was appointed on Monday as UNICEF's newest ambassador, pledging to raise awareness about malnutrition worldwide.
"As a mom myself, it's devastating to know that children are suffering because they don't have adequate nutrition," said the Grammy Award-winning singer.
"All children should be able to grow up strong and healthy, with the opportunity to reach their full potential."
"As a UNICEF ambassador, I want to use my platform to help end global malnutrition," which affects one in four children around the world, according to UNICEF.
Pink has a three-year-old daughter, Willow, with husband Carey Hart.
In July, Pink traveled to Haiti to see how therapeutic food can have an impact on malnourished children.
She visited an infant care center where children are treated for severe acute malnutrition.