Jimmy Kimmel's mean tweets - Grammy edition

It’s back and it’s better than ever - Jimmy Kimmel’s celebrities read mean tweets, music edition #3.

This time they’ve pulled out all the stops in honor of this year's Grammy, with One Direction, Meghan Trainor, Josh Groban, Demi Lovato, Lionel Richie, Rita Ora, Kelly Clarkson, Mumford & Sons and Josh Groban all making appearances.