And he's even questioned people on whether they've aborted a child.
The movement trended worldwide on Tuesday and also prompted another hashtag aiming to promote adoption.
But Brookstein has used it to shoehorn in a mention of his own 'abortion' - of a music contract with 'X Factor' mogul Simon Cowell.
And rather than quickly rectify the error of judgement, the infamously prickly singer defended his views in a series of expletive-laden tweets.
He began to question women on whether they had had abortions
And made other offensive remarks
People are incredibly -- understandably -- quite angry