Mac McClung is a full-blown superstar following his incredible performance during All-Star Weekend last month -- the guy has gone from the G League to the big screen ... starring in a commercial with Vince Carter!!
The 24-year-old high-flying baller became a household name after stealing the show at the slam dunk contest and taking home the hardware over Kenyon Martin Jr., Trey Murphy and Jericho Sims ... which breathed life back into the event that, as of recently, lacked excitement.