Post Malone presented a Texas bartender with a Christmas present for the ages.

The pop star gifted a single mother, who was working on Christmas Eve, a $20,000 tip.

Renee Brown, 36, waited on the F-1 Trillion star at The Railyard, a small neighborhood establishment in Houston, according to Music Mayhem Magazine.

“Going into work Christmas Eve, I was so sad I had to leave my baby girl to go to work. Oblivious that God would send me a Christmas miracle,” Brown said. “This is hands down the most humble, personable celebrity I’ve had the pleasure of meeting. He changed my life on Christmas (f-king) Eve and will forever be grateful. Thank you so much, Austin.”

Brown said Post Malone walked in with Shaboozey.

“I initially didn’t realize he was there until one of my coworkers from my second job came inside and told me that Austin (Post Malone) was outside on the patio,” she said. “I thought he was kidding with me at first, then I kept seeing people go outside, (and) I kept making drinks for like 30 minutes before curiosity got the best of me, and lo and behold, he was there.”

Brown shared that patrons bought drinks for Post Malone, so when he asked for the bill late into the night, it was covered. She said Post Malone insisted on being charged, so he could tip her.

“So, he asked me to ring him up for a penny or anything, so I did,” she said. “I continued my close and collected all my checks and started to enter my tips. Then I got to his. It was a tip for $20,000.”

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Mark Heim is a reporter for The Alabama Media Group. Follow him on Twitter @Mark_Heim. He can be heard on “The Opening Kickoff” on WNSP-FM 105.5 FM in Mobile or on the free Sound of Mobile App from 6 to 9 a.m. daily.