Jack Harlow's acting career is poppin' -- the rap star just reportedly landed the lead role in the "White Men Can't Jump" reboot ... after his FIRST EVER audition.
The "Nail Tech" MC will play Billy Hoyle, which was Woody Harrelson's role in the original film back in 1992, according to Deadline.
23-year-old Harlow -- who has zero acting experience -- apparently wowed producers from the jump ... helping pave the way to his first on-screen gig.
Of course, the OG flick starred Harrelson and Wesley Snipes -- which followed the story of two on-court rivals who team up to start hustling people on the court.