So, here's how I got the story:
Demi Lovato made an appearance at The Monster, a gay bar in the West Village, to promote her new single. But just as she starts to sing she says she needs someone to dance with while she sings.
And that's when Ms. Lovato got upstaged by a go-go dancer who proved that "monster" wasn't just the name of the club.
It's actually quite funny to watch since it's difficult to pay attention to Demi. NSFW.
(h/t Gaily Grind)