Demi Lovato signed on to serve as a Global Citizen ambassador at the organization's annual music festival on Saturday.
As an ambassador, Lovato will advocate for the mental health of thousands of children displaced within Iraq and other parts of the region.
The singer and Global Citizen will help fund the expansion of Save the Children's pilot program, Healing and Education through the Arts.
Healing and Education through the Arts provides "psychosocial support for children affected by serious or chronic stress," according to Save the Children's website. "It uses the arts to help children process and communicate feelings related to their experiences."
In the last five years, Save the Children says the program has provided support for more than 150,000 children in Asia, Africa, the Middle East, Eastern Europe, and Latin America. The expansion, however, will specifically focus on violence-scarred children living in Iraq's Kirkuk and Salah al Din areas.
"Ending the stigma around mental health conditions and supporting internally displaced children to build physical and mental resilience through education and access to justice is not a choice, it needs to happen, and it needs to happen now," the singer said onstage.
Since 2014, more than 3 million people in Iraq have been displaced due to conflict.
Carolyn Miles, president and CEO of Save the Children, told the crowd that through this program children will be able to begin healing and "rebuild their self-confidence and trust in others."
Lovato has been an outspoken advocate of mental health awareness since she was diagnosed with bipolar disorder.
The Associated Press contributed to this report.