Justin Bieber, Worried about his music.

More pop superstars are coming to Glee, which starts again past February with an episode that will include a tribute to Michael Jackson's "Thriller."  Another episode will feature Lady Gaga single "Born This Way."  If we can connect the dots and make everyone happy, we'll probably do something great, says PJ Bloom, Glee's music supervisor.

Already confirmed for upcoming episode: song from Destiny's Child, Katy Perry and Queen.  The episode will also feature one or two Justin Bieber tunes and a Bieber - related subplot. 

Justin hopes they treat his music with the same respect we give to the show, which I think they will, says the singer's manager, Scooter Braun. Last year, Glee-related release sold 3.6 million copies. Hope this one will do better than the past one.