"Hey, here's a pro tip: go to Dom Harvey's account, check out his profile pic and unfollow him if you haven't already."
He replied by tweeting: "There is this Kiwi who calls herself a `comedian' who is asking her small pocket of followers to unfollow me. This may be her best joke ever."
Harvey also defended his tweet by posting: "I suspect Grace knows she is not that person who played the role of Grace in a fictional film."
However, he later deleted the tweet and today posted: "I have deleted a tweet I wrote last night. It was supposed to be funny. On reflection, it was not. Sorry for any offence caused."
A Mediaworks spokeswoman said the matter had been dealt with through Harvey's apology.
"That's his Twitter account and not an official Mediaworks line - obviously it's not a statement we would endorse...but we're certainly satisfied with the way Dom has amended and apologised on the social media network."
She did not believe they had received any complaints about the tweet.
The Broadcasting Standards Authority said because it was not something he had said on air, the issue fell outside its scope.
But tweeters voiced their displeasure directly to the radio star following its posting.
One tweeter, crystal-cooper tweeted: "Such a shame that @DomHarvey is letting down the side for @TheEdgeNZ everyone else is super funny and not misogynist dickheads!"
Another tweeter, @stamspo wrote ''@DomHarvey yes because joking about a real problem that many face is so crack up!!!!!!!!!!! and hilarious!!!!!! wow!!!!!!''
Others called for sponsors to pull out of advertising on the radio station, with one tweeting: "As I see it, the only way @TheEdgeNZ does anything about Dom Harvey is if sponsors start pulling out, so that's who you should be pressuring."
Ikanasio was due to appear on the radio station this morning and on its twitter feed. The Edge called for fans of the show to vote for her as a wildcard entry to get back into the competition.
Last month Harvey was accused of sexism for a tweet which said it was hardly ever a good idea for women to rap.
Harvey tweeted his views about women rapping while watching the auditions for The X-Factor NZ.
"Girls rapping. Hardly ever a good idea," he said.
The tweet sparked a flood of criticism, with many people calling it sexist and out-of-touch.
Kiwi rapper Coco Solid called for people to let The Edge know Harvey's tweet was offensive in a post on her Facebook page.