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The two went over to Vegass perma-quick-wedding-ready Chapel LAmour after last nightsBillboard Music Awards.
(The other two Jonas brothers served as groomsmen.)
We somehow have Diplo to thank for recording it all on his Instagram story.
The two got engagedback in October 2017, and reportedly first started dating in November 2016.
(Though, of course, having an Elvis marry you is a grand tradition of its own.)
Thank you, again, to star celebrity news reporter Diplo for his work on the ground.