The country star blasted the rapper on Twitter, bringing up his assault on Rihanna! Plus, more celebs weigh in!

IT WAS HIS FIRST APPEARANCE AT THE GRAMMYS SINCE HE ASSAULTED RIHANNA THE NIGHT BEFORE THE 2009 AWARDS, AND NOT EVERYONE WELCOMED HIM BACK WITH OPEN ARMS. ESPECIALLY MIRANDA LAMBERT.

THE COUNTRY STAR SPOKE OUT ON TWITTER -- FIRST ABOUT NICKI MINAJ'S LENGTHY SET -- AND THEN ON CHRIS BROWN'S TWO PERFORMANCES SAYING, ''How dang long did they give Nicki Minaj to do whatever that was? Strange. And Chris Brown twice? I don't get it. He beat on a girl...'

THEN SHE ADDED, 'Not cool that we act like that didn't happen. He needs to listen to Gunpowder and lead and be put back in his place. Not at the Grammys.'

IN CASE YA DIDN'T KNOW, 'GUNPOWDER AND LEAD' IS MIRANDA'S SONG ABOUT A WOMAN PREPARING TO KILL HER ABUSIVE HUSBAND WHEN GETS OUT OF JAIL...

AND SHE'S NOT THE ONLY ONE WHO HAD A PROBLEM WITH CHRIS...

JACK OSBOURNE TWEETED, 'Chris brown.....people don't forget! WITH THE HASH TAG, chrisbrownbeatswomen'

AND THEN HE ADDED, 'if Chris Brown had worn a wife beater, the irony would eclipse the whole show.'.