BBC News By Mark Savage What goes through your mind when you win a Grammy? Disbelief, maybe. Serotonin, certainly. And, for US R&B star H.E.R, just a little bit of cognitive dissonance. "One of the first things I thought was, 'What? I beat Beyoncé?'" says the singer, recalling the moment she won Song Of The Year at this year's ceremony. "There were some heavy hitters in that category, you know? Billie Eilish and Post Malone. So, oh my gosh, when Trevor Noah called my name, I couldn't believe it." The R&B star was recognised for her passionate cri de cœur I Can't Breathe, which quoted the dying words of George Floyd.