Green was essentially "canceled" in 2014 for his insensitive and inappropriate tweets about rape.
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In 2012, the singer was accused of drugging and sexually assaulting a woman, however, prosecutors concluded there wasn't enough evidence to take that sexual assault accusation to court, the Los Angeles County District Attorney's Office said in a statement.
Green also came under fire after he sent a tweet deemed "homophobic" to the music editor who negatively critiqued his performance with Rihanna in Minneapolis in 2011.
Fast forward to Sunday night when Twitter took notice of the questionable choice to have Green perform the national anthem.
Many users pointed out Green's problematic tweets and sexual assault allegations mentioned above.
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However, there were some users who were happy to see the singer's return, applauded his rendition of the national anthem.
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