What goes on in Vegas most certainly will NOT stay in Vegas here!
Watch it go down (below)!!!
It's so adorable to see John getting so nervous! You can tell he wants everything to be purrfect for his Katycat!
He even baked! Awwww!
Ch-ch-check out the video (above) to see the cute couple talk about making beautiful music together- and also collaborating on songs! LOLz!