Kourtney Kardashian and Travis Barker were apparently all shook up over the details of their Las Vegas “wedding” ceremony.

Page Six has learned that the two wouldn’t commit to exchanging vows at the One Love Wedding Chapel until owner Marty Frierson locked down an Elvis Presley impersonator to officiate.

Frierson told us that following Sunday’s 2022 Grammys at the MGM Grand Garden Arena, he received a call around 12:30 a.m. from someone in the couple’s camp.

“‘We have a celebrity coming in from the awards [show] and want to make sure you’re open. We looked at your reviews. You’re a five-star chapel, so we know it’s nice – but can you get us Elvis?’”

He told us that Kardashian, 42, and Barker, 46, were so adamant about “Presley” officiating that they “didn’t want to book” without confirmation.

“So I made some calls,” Frierson said, explaining that he has a few Elvis impersonators on hand – though not all of them are on call to work 24/7.

Worried that this could all be some sort of “prank,” Frierson then told the couple’s rep that they needed to book their service and pay for it online, just like everyone else.

We’re told everyone, including “Presley,” arrived on time with no issues. Frierson said Kardashian and Barker – who came dressed in the same outfits they wore to the Grammys