LOS ANGELES (Reuters) - U.S. rapper Mac Miller, whose debut album “Blue Side Park” topped the charts in 2011 and who dated singer Ariana Grande for a time, died on Friday at age 26, his family said in a statement. The statement did not give more details on the circumstances of Miller’s death. Miller, whose real name was Malcolm McCormick, had discussed his use of drugs in media interviews and rap lyrics. Miller was scheduled to launch a U.S. tour next month, and had tweeted about it on Thursday.