Rihanna's reaction to a fan out-singing her was totally priceless

Rihanna kicked off one of the very first shows of her Anti tour last week and was left completely floored when a fan totally out-did her at her own game.

Holding out the mic for a member of the crowd to sing along to her banger Four, Five Seconds, she was not expecting what came next.

It was brilliant.

It was epic.

It was more than we hoped for and more.

It was priceless.

And if you need that as a gif, we've got you covered.

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