LOS ANGELES (AP) — Post Malone, who is competing for record and album of the year Grammys, closed out Universal Music Group's annual pre-Grammy showcase, which was also highlighted by YG dissing President Donald Trump and K-pop sensation BLACKPINK, who made their U.S. debut performance.Malone, who is nominated for four Grammys, talked about hurting his finger before he sang while playing a guita..