“Slave to the Rhythm,” this alleged duet between Michael Jackson and Justin Bieber, “leaked” onto the net Friday, with Bieber tweeting, “Excited for what is to come. MJ set the bar. Not only for music but for being an entertainer and how u treat the fans. Wish he was here….” So do we. But this is not the song’s debut; the track by Jackson originally leaked right after the Gloved One’s death, when Bieber was an unknown 15-year-old with no product. So this new version is anyone’s guess. (via EW)