Natalie Maines (from the Dixie Chicks) rips on Jason Aldean

Natalie Maines of the Dixie Chicks cracked a joke at Jason Aldean‘s expense during the 2012 Grammy Awards on Sunday night, and that didn't go over well with Jason's fan base.

She tweeted:  “Well the good thing about his mic going out is suddenly the song got a lot more in tune,” adding that he was “pitchy” in his delivery.

Jason Aldean’s microphone cut out during the end of his performance of ‘Don’t You Wanna Stay’ with Kelly Clarkson.

When a fan called her out, Maines replied:  “I don’t know him. I just know this wasn’t a good night for him. It happens".

Another fan tweeted:  “Country music star Jason Aldean was singing with Kelly and your tweet was just plain mean – and incorrect."

Maines asked:  “I got nothing against the guy, but really? You thought that was in tune?"

To another fan, she tweeted, “I get the feeling you don’t like that I don’t like top 40 country music.Music’s subjective.”

Maines added, “I haven’t been aware of country music in at least 6 years. It’s not my thing. I used to follow it because I felt it was my job to know what was going on. I don’t think that anymore;).