Luke Bryan is clearing up the “misinformation” surrounding his sister, Kelly Bryan’s shocking 2007 death.

The “Country Girl” hitmaker revealed the cause of his sister’s passing while also addressing fan speculation that he and his family attempted to “cover it up” on Tuesday’s episode of “All There Is with Anderson Cooper.”

“I’ve never really explained what happened to my sister,” Luke started.

“There’s some misinformation out there on the internet, and I think some people kind of wonder what happened and think that we’ve tried to cover it up.”

“But there is a very, very small percentage of people that die for no reason in the world,” he said. “And it’s called sudden death syndrome and that’s essentially what they described my sister’s death as.”

“She was in her home doing her laundry, and it was Anderson, it was like, you know, somebody just turned the switch off on her and it was just tragic beyond words.”

The family decided to investigate Kelly’s death because “there was just so much unanswered questions” and they wanted to learn if there could be “a family history” or something genetic that might’ve been passed along to her three children: Jordan, Kris and Tilde.

But, the “American Idol” judge, 49, went on to confirm that it took “awhile” for his family to receive the official cause of death from the doctors due to several “inconclusive” findings surrounding her death.

“She had a pretty severe, like, orbital bone injury,” Luke noted. “So whether she fainted or not, I think she may have went into the floor and kind of knocked herself out. My nephew was 3 at the time.”

Luke added that if “someone could have been there, maybe her chances of surviving” could have possibly “been a lot better.”

“She really was everything in our lives,” he said of Kelly. “She was a mother of three children and she was, I mean, the best mother you could ever dream of. And we all leaned on her for so many things and it’s hard to really wrap your brain around her being gone.”

While reflecting on his grief, the Country Music Awards winner described not knowing “how to vocalize what [he] was feeling” when he attended Kelly’s funeral, but shared that he felt “nausea” the morning of.

“I did not want to go in the funeral home and see my sister. I was just really … not not processing this well,” Luke reflected.

“When I saw her, it was like something, it was almost like a pressure valve released,” he explained. “And I just feel like between … I don’t, I can’t explain it. It was truly like she let – she set me free in that room. My mother did not have that experience and I think I was the only one in the family that had that experience.”

Seven years after Kelly’s 2007 death, her husband, Ben Cheshire, died of a heart attack. At which point, the country singer and his wife, Caroline Bryan, adopted the couple’s three children.

Luke and Caroline are also parents to Thomas “Bo” Bryan, 17, and Tatum “Tate” Bryan, 15.

“My oldest Bo and Til, I mean, it is all brotherly. It looks and smells just like two brothers complaining and fighting and wrestling and giving each other a hard time,” he said.

“But with Tate, my 15-year-old and Til, they have a really special bond, and I can’t imagine a household where Til would have never grown up in it. And, I mean, it’s just been a blessing and a silver lining to have him and to watch the girls go through life and become mothers and… and get through life daily has been pretty inspiring too. I’m really proud of them.”