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During her iHeartRadio Music Festival performance, Nicki Minaj shut it down with an a capella, off-the-cuff performance of the verse in her recent "Flawless" remix.

As the "Flawless" music started to play, the sound kept cutting out. Her Minajesty questioned her DJ on stage about the music, but decided it didn't matter - she was going to do it a capella ... and it was FLAWLESS (obviously).

Nicki shared on Instagram, "#Video #flawless by the way, that wasn't part of the show. Lol. The music really cut off so I just decided to go a cappella #iHeartRadio #Vegas"

Photo: Getty Images