Imagine you've arrived at your best mates SECRET engagement party that you've been keeping under wraps for months and then they go and drop a secret surprise on top of that secret surprise!
Well, that is exactly what happened to the guests of Alex and Ross' engagement party.
After the overwhelming surprise that Alex had organised all of their friends and family to attend without his knowledge, he then did a literal mic drop by introducing the one and only Taylor Swift.
Taylor then proceeded to serenade the couple with their favourite song and we just cannot with the cuteness.
Apparently, Alex emailed Taylor to see if she could perhaps make an appearance at the party and to the shock of EVERYONE, she did!
Alex and Taylor go way back with Alex appearing in Taylor's video clip for 'Shake It Off' (you can see him at the 3.38 mark).