Ariana Grande Kicks off <br />Tour With Tribute to <br />Mac Miller The singer honored her late ex during the first stop on her Sweetener tour. Miller died from an accidental overdose in September. He was <br />26 years old. Fans at the concert took to Twitter and shared that Miller’s music was playing before the show began. @gabidaviss, via Twitter @MarissaCitarell, via Twitter Since his passing, Grande has <br />shared multiple memories of <br />the two of them together.