(Yahoo!) - If you haven't heard by now: Justin Bieber is upset that he was shut out of the 2013 Grammys. And the superstar isn’t taking kindly to those who suggest he really doesn’t have much to complain about.

When Black Keys drummer Patrick Carney—whose band scooped up four Grammy Awards on Sunday—told TMZ that Bieber should be happy because “The Grammys are for music, not money…he’s making a lot of money,” the Biebs responded swiftly on Twitter. Check out the Twitter exchange here.