In case you didn't know, there's talk he's dating singer Ariana Grande now and of course, his band mates HAVE to tease him about it.
Watch what happens when the interviewer cleverly brings up Ariana to Nathan. We don't know whose reaction is the best!
Do you think Ariana and Nathan make a cute couple?
Click here to listen to their song "Almost Is Never Enough" from The Mortal Instruments: City of Bones soundtrack!
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