"I was too ashamed. Too afraid. And it took me a long time to even admit it to myself," Gaga wrote.

By Karen Mizoguchi
March 02, 2016 12:00 AM
Kevin Winter/Getty

In 2014, Lady Gaga publicly revealed that she was raped at age 19.

Although many were made aware of the singer’s sexual assault incident, Gaga’s family, specifically her grandmother and aunt, did not know until they watched her powerful Oscars performance.

“My grandmother (in the middle) and my Aunt Sheri (on the right) both called me the day after the Oscars because I never told them I was a survivor,” Gaga, 29, wrote on Instagram and Twitter.

On Sunday, the six-time Grammy winner performed “Til It Happens to You,” the Oscar-nominated song she co-wrote with Diane Warren for The Hunting Ground, a documentary about rape and assault on college campuses.

While on stage, Gaga was joined by 50 survivors of sexual assault.

“I was too ashamed. Too afraid. And it took me a long time to even admit it to myself because I’m Catholic and I knew it was evil but I thought it was my fault,” Gaga continued in her post.

“I thought it was my fault for ten years. The morning after the Oscars when I talked to my grandmother Ronnie, with tears in her eyes I could hear them welling through the phone she said to me ‘My darling granddaughter, I’ve never been more proud of you than I am today.'”

Gaga shared her emotional family conversation with over 71 million of her social media followers in hopes of inspiring others to “speak up.”

“Something I have kept a secret for so long that I was more ashamed of than anything– became the thing the women in my life were the most proud of,” she wrote. “And not just any women, the ones I look up to the most. #BeBrave #speakup #tilithappenstoyou.”