MIA's tribute to fellow musician Amy Winehouse is, fittingly, a song. "All rock stars go to heaven, you said you'll be dead at 27," MIA sings in "27," which alludes to other singers who have also died at that age—among them Janis Joplin, Kurt Cobain, Jim Morrison—reports the New York Daily News. MIA tweeted a link to the song over the weekend, writing "R.I.P A.M.Y." and noting that the song was a demo version she previously recorded but never released. (More M.I.A. stories.)