As you may know, DNCE recently teamed up with Rod Stewart on their new collab "Da Ya Think I'm Sexy," a remake of Rod's 1978 hit.
DNCE and Stewart performed the song together during the 2017 MTV VMAs, and to get into the '70s spirit, Joe Jonas grew a mustache reminiscent of the decade. And it was glorious.
After noticing Joe's new facial hair, fans took to Twitter to share their opinions of the 'stache. Some people are completely here for it.
And some people, not so much...
Others thought he looked like other mustache-rocking dudes.
And many thought he was about to perform "Burnin' Up" -- a song from his Jonas Brothers Days.
What do you think of Joe's new mustache?