According to ABC 13 News, music artist Post Malone gave a generous gift to a bartender at The Riveryard Bar in Houston, Texas. He was recently in town for Beyoncé's Halftime show at the Texas Ravens football game, where he performed on the field alongside country artist Shaboozey. Malone left a $20,000 tip to single mother Renee Brown, "His generosity with this life-changing gift blew me away," Brown continued. "This definitely wasn't the Christmas Eve I was expecting, but one I'm forever thankful to have had."