Ashley TisdaleandAustin Butleraren’t just BFFs — the celebrity besties recently learned they’re actually related!TheHigh School Musicalactress, 37, found out about her family link to theElvisstar, 31, on the latest episode of Ancestry’s2 Lies & A Leafseries. It turns out that Tisdale and Butler — who both starred in 2009’sAliens in the Atticand 2011’sSharpay’s Fabulous Adventure— are 10th cousins once removed.“Austin and I always say that we’re like fraternal twins born very far apart because he’s much younger and we’ve always had that connection,” the Frenshe founder told her sister,Jennifer, who was also featured in the episode.Steven Simione/Getty Images; Kate Green/Getty ImagesTisdale was tasked with choosing between former castmates Butler,Zac EfronandDylanandCole Sprouseas her possible relative. Because of her closeness with Butler, she correctly chose him.The two sisters then said with excitement, “Oh my God!““No wonder we have such a connection!” Tisdale continued. “We’ve always said we were brother and sister! That is insane. I literally am going to cry.“Ben Mark Holzberg/Disney Channel via Getty ImagesTisdale then referred to Butler as her “best, best friend.““I’m telling you when we first met, I was like ‘Oh, my God,'” she added. “We were like brother and sister from the minute we met.“At the end of the episode, Tisdale revealed that she texted Butler the news of their familial connection. Sharing the actor’s response, Tisdale said: “He goes, ‘No f—ing way.'“Rick Rowell/Disney Channel via Getty ImagesNever miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.The longtime pals have forged a very close friendship since working on their two films together. Previously, Tisdale described Butler asher “twin born 7 years later"while celebrating his 30th birthday last year.“You’ve been my closest friend through the years. You’re the type of friend that came over when I was crying on the floor from a horrible breakup and not only lifted me off the ground but brought my favorite candy,” she wrote in a tribute post. “I honestly didn’t think anyone would ever understand me like you, but then enter my husband [Christopher French] and you happily embraced him like a brother. There’s no one like you Austin.“Earlier this year, Tisdale and Butler reconnected face to face for the first time in two-and-half years.“When you haven’t seen your best friend in 2 1/2 years,” she wrote alongside a photo of the pair in January. “You hold on real tight and don’t wanna let go.”

Ashley TisdaleandAustin Butleraren’t just BFFs — the celebrity besties recently learned they’re actually related!

TheHigh School Musicalactress, 37, found out about her family link to theElvisstar, 31, on the latest episode of Ancestry’s2 Lies & A Leafseries. It turns out that Tisdale and Butler — who both starred in 2009’sAliens in the Atticand 2011’sSharpay’s Fabulous Adventure— are 10th cousins once removed.

“Austin and I always say that we’re like fraternal twins born very far apart because he’s much younger and we’ve always had that connection,” the Frenshe founder told her sister,Jennifer, who was also featured in the episode.

Steven Simione/Getty Images; Kate Green/Getty Images

Ashley Tisdale attends SHEGLAM’s Glam House Pop-Up Hosted by Ashley Tisdale; Austin Butler poses for photographs ahead of BAFTA A Life in Pictures: Baz Luhrmann at BAFTA

Tisdale was tasked with choosing between former castmates Butler,Zac EfronandDylanandCole Sprouseas her possible relative. Because of her closeness with Butler, she correctly chose him.

The two sisters then said with excitement, “Oh my God!”

“No wonder we have such a connection!” Tisdale continued. “We’ve always said we were brother and sister! That is insane. I literally am going to cry.”

Ben Mark Holzberg/Disney Channel via Getty Images

AUSTIN BUTLER, ASHLEY TISDALE

Tisdale then referred to Butler as her “best, best friend.”

“I’m telling you when we first met, I was like ‘Oh, my God,'” she added. “We were like brother and sister from the minute we met.”

At the end of the episode, Tisdale revealed that she texted Butler the news of their familial connection. Sharing the actor’s response, Tisdale said: “He goes, ‘No f—ing way.'”

Rick Rowell/Disney Channel via Getty Images

RADIO DISNEY - Ashley Tisdale and Austin Butler, stars of “Sharpay’s Fabulous Adventure,” stopped by Radio Disney for a Take Over with Ernie D and to co-host the Top 30 Countdown

Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.

The longtime pals have forged a very close friendship since working on their two films together. Previously, Tisdale described Butler asher “twin born 7 years later"while celebrating his 30th birthday last year.

“You’ve been my closest friend through the years. You’re the type of friend that came over when I was crying on the floor from a horrible breakup and not only lifted me off the ground but brought my favorite candy,” she wrote in a tribute post. “I honestly didn’t think anyone would ever understand me like you, but then enter my husband [Christopher French] and you happily embraced him like a brother. There’s no one like you Austin.”

Earlier this year, Tisdale and Butler reconnected face to face for the first time in two-and-half years.

“When you haven’t seen your best friend in 2 1/2 years,” she wrote alongside a photo of the pair in January. “You hold on real tight and don’t wanna let go.”

source: people.com