Cara’s mic was plagued by technical difficulties that made large portions of the song inaudible, although she powered through and a few of her most high-powered notes still rang through.

This article is brought to you by our exclusive subscriber partnership with our sister title USA Today, and has been written by our American colleagues. It does not necessarily reflect the view of ...

During the very first song, "Bloody Mary," Gaga’s headset mic stopped working and she was discreetly handed a handheld mic when she came through the cage before starting “Abracadabra.” ...