Once again, it's Kimmel's "Mean Tweets," Music Edition. The clip features Josh Groban, Drake, Lady Gaga, Sam Smith, Jessie J, Blake Shelton, Haim, Wiz Khalifa, Ed Sheeran, Iggy Azalea, Pitbull, Sia, Childish Gambino, Britney Spears, Ariana Grande, Jason Aldean, 5 Seconds Of Summer, Katy Perry and — my favorite reading by far — Psy. As usual, the video is profanity laden (with beeps over the profane words). -Via Tastefully Offensive