A$AP Rocky was the musical guest on last night’s (January 17) episode of Saturday Night Live , hosted by Stranger Things star Finn Wolfhard. On the heels of releasing his new album Don’t Be Dumb , the rapper was joined onstage by Thundercat and Danny Elfman for the single “ Punk Rocky ,” and performed a medley of the record’s title track and “ Helicopter$ .” Watch Rocky on SNL below. After multiple delays and false starts , Don’t Be Dumb finally arrived on Friday, January 16. Both “Punk Rocky”