Post Malone was clearly in the holiday spirit when he went to The Railyard bar in Houston on Christmas Eve. The country superstar gave his bartender – a 36-year-old single mom named Renee Brown – a $20,000 tip that night, and gifted her a Christmas miracle in the process. “Going into work Christmas Eve, I was so sad I had to leave my baby girl to go to work,” she told Music Mayhem. “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 I will forever be grateful.” Brown is raising her nine-year-old daughter on her own, and Post’s generosity allows her to chase her dreams. “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 says. “Things have been extremely difficult, and this was truly a blessing that I can’t fully put into words.” (Billboard)