AceShowbiz - Post Malone, the acclaimed superstar known for hits like "Rockstar" and "Sunflower," brought an unexpected Christmas miracle to a 36-year-old single mother named Renee Brown. On Christmas Eve, at The Railyard bar in Houston, the 29-year-old artist, whose real name is Austin Post, left Brown stunned with a $20,000 tip.

According to Music Mayhem, Brown, who was grappling with the heartbreak of being away from her nine-year-old daughter on the holiday, found this act of kindness completely transformative. "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," she shared with the publication.

Brown described her interaction with Post Malone, whose real name is Austin Richard Post, as overwhelmingly positive, lauding him as "the most humble, personable celebrity I've had the pleasure of meeting. He changed my life on Christmas f***ing Eve, and will forever be grateful. Thank you so much, Austin."

The $20,000 tip provides Brown with a much-needed lifeline. "This put me in a position to at least be able to get a way back and forth to work and pay up on rent and save a bit. I'm trying to save up to start a business, so I don't have to continue working two jobs and be able to spend more time with my daughter," Brown explained.

Post Malone's generosity came shortly after significant milestones in his career. His debut country album, "F-1 Trillion," released in August, reached No. 1 on the Billboard 200 albums chart and was certified platinum by the Recording Industry Association of America (RIAA) in December. Additionally, his single "I Had Some Help" featuring Morgan Wallen, which secured six weeks atop the Billboard Hot 100, received a 5x platinum certification.

Post Malone's benevolent act occurred just a day before another significant moment - a surprise cameo during Beyonce Knowles' Christmas Day halftime show at the Texans-Ravens game at NRG Stadium.Together, they performed their collaboration "LEVII'S JEANS."

After the show, he expressed his gratitude on X, writing, "Thank you @Beyonce so much for havin me out in Houston, and on your beautiful record. Also, thank you for sharin your talent and art with the world. I love you."

With seven Grammy nominations pending for the upcoming awards, including best country album and best recording package for "F-1 Trillion," as well as best country song and best country duo/group performance for "I Had Some Help," Post Malone continues to impress not only with his musical talents but also his generous spirit.

Renee Brown's Christmas miracle is a poignant reminder of how a single act of kindness can make a monumental impact, forever changing lives for the better. As Brown herself put it, "This was truly a blessing that I can't fully put into words. The visit alone was absolutely amazing and something I could talk about and remember for the rest of my life."