"If I've said it once, I've said it 1000 times. Pink sucks and if you like her singing you're dumb," a man nicknamed Dirty Couch wrote.
US rock star Pink made it up to him, posting a reply on her own Twitter account.
Her post received over 78,000 likes and was retweeted more than 10,000 times.
The Twitter exchange came as a result of an awkward move by Pink ahead of the performance, when she took something out of her mouth and was caught on camera doing so.
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The footage was published by the American National Football League (NFL) on Twitter and intrigued social media users, sparking vivid discussions.
The singer later explained that she got flu and it was a lozenge against cough.