Chris Brown accepts the award for 'Best Rap Performance' onstage at the 54th Annual GRAMMY Awards held at Staples Center on Feb. 12, 2012 in Los Angeles

*Some Grammy Awards viewers have voiced strong complaints over the show’s embrace of Chris Brown – just three years after his assault of Rihanna, reports the AP.

Brown appeared on Sunday’s broadcast three different times. He won best R&B album for “F.A.M.E.,” he performed a single from his upcoming album, “Turn Up the Music” [scroll down to watch], and he opened a dance tribute to “Soul Train” creator Don Cornelius.

On the eve of the 2009 Grammys, Brown beat his then-girlfriend Rihanna, for which he later pled guilty to a charge of assault and was sentenced to five years of probation and six months of community labor.

Since then, Brown has worked to repair his image, undergone domestic violence counseling and rediscovered popularity with his hit album “F.A.M.E. (Forgiving All My Enemies).” Last year, his restraining order was eased. The former order required Brown to stay 50 yards away from 23-year-old Rihanna, but the restriction was reduced to 10 yards if they were at a music industry event. Rihanna also performed Sunday but the two never shared the stage.

Singer Chris Brown performs onstage at the 54th Annual GRAMMY Awards held at Staples Center on Feb. 12, 2012 in Los Angeles

On Sunday evening, Twitter was abuzz with questions of Brown’s significant role in the proceedings. Many critics argued against the Grammys’ decision to celebrate Brown and endorse his comeback.

New Yorker music critic Sasha Frere-Jones called Brown’s return “one of the Grammys’ weirdest choices ever,” and cited R&B singer Drake as the more deserving star in the genre to celebrate.

In an op-ed, Valerie Strauss for The Washington Post said that while people deserve second chances, “That doesn’t mean they deserve a chance to strut around the Grammy stage a few years after being convicted of felony assault.”

Jeffrey Goldberg for The Atlantic tweeted: “I don’t look for the Grammys for moral clarity, but, really? Do the words ‘felony assault’ mean anything at all?”

DJ David Guetta and singer Chris Brown perform onstage at the 54th Annual GRAMMY Awards held at Staples Center on Feb. 12, 2012 in Los Angeles

Grammy producer Ken Ehrlich defended the show’s backing of Brown on “CBS This Morning” on Monday. He said that he was “kind of rooting” for Brown.

“I just believe people deserve a second chance,” said Ehrlich. “The year he had this year, really brought him back into the public. He really deserved a second chance.”

Certainly, there are many fans of Brown — “Team Breezy,” as he calls them — and they, too, took to social media to defend Brown. But some of those tweets were also held up as examples of questionable taste.

The site Buzzfeed gathered 25 tweets from Brown fans with lines such as: “I don’t know why Rihanna complained. Chris Brown could beat me anytime he wanted to.”

The feminism blog Feministe cited such reaction as evidence that “we as a society have a lot more work to do” to educate on domestic violence.

Rita Smith, executive director of the National Coalition Against Domestic Violence, also questioned the message the Grammys were sending.

“If an awards show is going to highlight an artist, what an awesome message they could send if we got an update somehow about how that artist had changed in a positive way,” said Smith. “Otherwise, the message becomes wait for a period of time and go on with business as usual.”

Musician Stevie Wonder (L) and singer Chris Brown attend the 54th Annual GRAMMY Awards held at Staples Center on Feb. 12, 2012 in Los Angeles

Brown, who didn’t attend last year’s Grammys even though he was nominated for three awards, has sometimes portrayed himself as embattled. On Sunday, he tweeted, “Team breezy we have come (a long) way … No matter what anyone says … WE MADE IT!!”

In his acceptance speech and performances, he made no mention or gesture to his last, abbreviated trip to the Grammys. But he did tweet — and then delete — the message: “People who make mistakes and learn from them are ROLE MODELS too. I’m just happy to inspire growth and positivity.”

Still, many performers watching at home questioned Brown’s involvement – including celebrities.

“Are Chris Brown’s mom and dad CBS and Grammy Brown?” sarcastically wondered Eric Stonestreet of “Modern Family.”

The singer Michelle Branch tweeted: “Trying not to go off on a rant but … Chris Brown … (bites tongue) have we forgiven him?”

“View” co-host Sherri Shepherd took a similar tact, writing, “Looks like all is forgiven (with) Chris Brown. That’s all I’ll say.”