So it LOOKS like G-Eazy allegedly cheated on Halsey (see her tweet below - cheater cheater pumpkin eater!) but she may already be moving on?! A few days after announcing her split with G-Eazy, Halsey was spotted at Post Malone's birthday party! Are they going to be the next pop/hip-hop power couple?! + a few days before that, she was spotted at one of his shows! They also took this picture together back in June! I'm going to do a little more sleuthing but I'm calling it now - these two are gonna date!