Singer Ciara is supporting a campaign that urges young Americans to get tested for HIV so they may "know what's going on" with their bodies.

The R&B artist will lead the Get Yourself Tested drive to help young people across the United States battle the sexually-transmitted disease.

"You gotta do it. Knowing is greater than doubt. You'll feel so much better if you know what's going on with your body, and you don't want to be surprised," Ciara told MTV News during the National Annual HIV Testing Day on Sunday, June 27.

The annual GYT campaign is a youthful, empowering social movement that aims to reduce the spread of STDs among the youth through awareness, open communication with partners, health care providers, and parents, and testing and treatment as needed.