Lovebirds Alex and Sierra, who won the third season of X Factor, might just be the cutest couple in music.

Here are moments that emphasize their cuteness.

The first time we were exposed to the couple they performed a rendition of Britney Spears' Toxic for their X Factor audition.

When they captivated the judges with A Great Big World's Say Something on X Factor...

When they sang Sara Bareilles' Gravity on X Factor...

This adorable interview they did and spoke about their last date...

Alex and Sierra discussed their wedding plans in this video...

And, their official first video for Scarecrow from their debut album.

Tags: Alex and Sierra