Still, despite her self-doubts, Halsey went ahead and put herself on tape. Much to her surprise, she received a callback. “I was, like, ‘Shut up! Are you kidding me?’ Then the real panic set in ...

Britney Spears blasted Halsey for allegedly portraying her as a “superficial pop star with no heart” in their new “Lucky” music video — and immediately took it all back. After Halsey (who uses ...