It's hard to believe this happened in real life
From NME:
The ‘Rockstar’ artist – real name Austin Richard Post – was performing at the E11EVEN nightclub in Miami, Florida on Saturday night (October 19) where he played a number of hits including ‘White Iverson’ and ‘Psycho’.
To the audience’s surprise, Posty showered the venue with $50,000 (£40,000) worth of single dollar bills. “50k Money Showers, Beer Bongs and @postmalone Live Performance! E11EVEN [loves] you!” nightclub officials wrote on their Instagram page.