Irresistible Couple Can’t Stop Flirting On Stage, Stun Judges With Unreal Singing Talent.

Alex and Sierra might be the cutest couple ever. Serious, ever.

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From the get go, these two show an unbelievable amount of chemistry and talent on The X Factor USA. Consequently, the entire crowd is captivated by their “spark.”

Even the judges feel the love: it’s clear to see that twinkle Simon gets in his eyes when he sees stars in the making.

Their performance of Britney Spears’ “Toxic” is simply sultry. Yes, sultry. And smooth.

Watch below to see what we mean: these two talented kids sing their hearts out (literally) on stage!

https://www.youtube.com/watch?v=w9JDrf1QBO4

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