Halsey had a fiery response to fans who left their concert in Phoenix, Arizona on Sunday after the singer gave a passionate speech about abortion rights on stage.On Monday, the 27-year-old hitmaker - who goes by the pronouns she/they - replied to a follower who tweeted that the 'amount of people' who walked out of Halsey's show at the Ak-Chin Pavilion amphitheater following her remarks was 'sickening'.'downside of doing outdoor venues: no door to hit them on the way out,' Halsey wrote, adding a hand waving emoji. Defiant:Halsey had a fiery response to fans who left their concert in Phoenix, Arizona on Sunday after the singer gave a passionate speech about abortion rights on stage.