Following Brown's performance at the 2012 Billboard Music Awards back in May, Pink tweeted: "One day if I lipsync, I hope I do it as well as him."
The 'Who Knew' star, who insists the tweet was intended to be lighthearted, subsequently received abuse from some Twitter users.
"The internet has created monsters. People that wouldn't have the balls to say anything in person but they get a keyboard under their fingers and, well, there's that saying, 'Anonymity is a shield from the tyranny of the majority'," Pink told News.com.au.
"There are so many haters in the world, so many miserable people. It was a joke. It wasn't even meant like, 'I hate Chris Brown'. Twitter brings out the best and worst in people - myself included.
"With the Chris Brown thing I got death threats for days. My favourite was, 'I will snatch you within an inch of your life'. I don't know how that works exactly, but whatever you want."
Pink was also sent unpleasant messages after she was announced as the new face of cosmetics company CoverGirl.
"After the announcement someone tweeted to me, 'Too bad they can't Photoshop the bitch off your face'. They were probably all proud of themselves when they were writing it. But that's our society, that's where we're at right now."
Watch Pink's video for 'Blow Me (One Last Kiss)' below: