Demi Lovato is one brave lady!

Hoping to put a face on mental illness, the singer has revealed she's been facing a serious issue -- bipolar disorder.

The 22-year-old is currently waging a campaign to combat the negative stigmas associated with mental health problems and is going public with her own battle.

"I have struggled with bipolar disorder for several years now," Lovato told People.

Demi's campagin is the Be Vocal: Speak Up for Mental Health. According to the website, the campaign, "is an initiative encouraging people across America to use their voice in support of mental health."

Lovato launched the initiative, which works with five different mental health groups, to help people who are afflicted by mental illness and give light to the issues that both society and people shove in the dark.

"I just think mental illness is something people need to learn more about," the "Heart Attack" singer told People. "I want people to know it's ok to ask for help and it's ok to have a mental illness."

Way to go!