If you need proof of Ed Sheeran being the sweetest guy ever, here it is: he crashed a couple's wedding to perform the song they chose to have their first dance to. This guy is pretty solid. Check it out below:

He just showed up:

And they were like, they couldn't even..

Watch the video below:

The reactions were not as orchestrated as Maroon 5's Sugar, so we're pretty sure this could be authentic.