The former Keeping Up with the Kardashians star, 42, and Travis, the 46-year-old drummer in Blink 182, got married at the One Love Chapel in Las Vegas, NV, in the early morning hours of Monday, April 4, Us Weeklyreported.
"They came on Sunday at 1:45AM. We had Elvis Presley. That was the deal sealer. It was an official ceremony," the chapel's owner Marty Frierson told Us about the couple's spontaneous ceremony.
Kourtney and Travis got married after Travis performed alongside H.E.R. and Lenny Kravitz at the 2022 Grammy Awards.
"They called up first and mentioned a celebrity was coming. They made sure we were open and I made them pay online before they got there because I don't know if it was a scam. So they paid online and came in," Marty revealed.
"It takes 30-40 minutes to complete. She got married, danced, threw the bouquet and then went off... I had [an] Elvis [impersonator] there and they got married."
Kourtney and Travis paid for the "One Love Affair package" comprised of 24-hour concierge, a rose bouquet and boutonniere, a song of the couple's choice, and photos from the event for under $200.
"It was very romantic. A lot of kissing and dancing. It was very, very romantic," the owner said.
Marty explained "the vibe was just love" between Travis and Kourtney, who will be starring on The Kardashians when the series premieres April 14 on Hulu.
Kourtney and Travis were both dressed in black, wearing the same outfits they had rocked at the Grammys earlier in the evening, and they only had five people with them at the chapel, including their security team.
It's unclear, however, whether the couple obtained a marriage license.
According to TMZ, the lovebirds -- who got engaged in October 2021 -- are not legally married yet.
Kourtney subsequently confirmed reports of the Vegas marriage in an Instagram posting on Wednesday.
"Found these in my camera roll," she captioned a gallery of photos showing the couple's ceremony.
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"Once upon a time in a land far, far away (Las Vegas) at 2am, after an epic night and a little tequila, a queen and her handsome king ventured out to the only open chapel with an Elvis and got married (with no license). Practice makes perfect."
Not long after Travis popped the question at the Rosewood Miramar Beach Hotel, a source told Us in January that the musician and reality TV star were "so ready to be husband and wife" and were "really excited" about planning a wedding.
"It's going to be some time this year and could even be as soon as this spring," the source said at the time. "They couldn't be more in love."
The source also shared, "[Kourtney] doesn't want any details of her wedding getting out as she wants it to be a surprise to guests. It's going to be a fairy tale wedding for sure, though."
Fans will be able to watch Kourtney and Travis' love story play out, including their engagement, on The Kardashians.
"There is a lot of us on there, and we've had such a good time doing it because we have such a good time when we're together, but I definitely want to protect it as much as I can," Kourtney told Variety last month.
"But also, this is my life. He obviously has a full-time job and a full career... But I think he's happy to [film]."
And Kourtney's mother Kris Jenner reportedly said during an April 5 appearance on The Ellen DeGeneres Show that Kourtney and Travis' relationship makes up "98 percent of the new show."
In a trailer for The Kardashians, Kourtney is also shown saying "Travis and I want to have a baby."
Kourtney is already a mom to Mason, 12, Penelope, 9, and Reign, 7, whom she welcomed with ex-boyfriend Scott Disick.
For Travis' part, he shares son Landon, 18, and daughter Alabama, 16, with his ex-wife Shanna Moakler, whom he married in 2004 and split from in 2008.