Demi Lovato, Joe and Nick Jonas Join Forces for Victoria's Secret Swim Special

Photo: Instagram
Get ready for something big!
Demi Lovato, Nick and Joe Jonas are all over Instagram this week, posting pics of themselves with Victoria's Secret models, which a source confirms to ET is for the Victoria's Secret Swim Special in 2016.
Over the weekend, Nick first teased the event would be happening in St. Bart's, writing: "Sunset acoustic show. #somethingbigiscoming16 #stbarth @victoriassecret."

Then Demi shared several pics of her and Joe Jonas partying it up with the models.
Demi also joked that she's a third wheel when Nick and her boyfriend Wilmer Valderrama get together. "I love these pics so much... Sorry @nickjonas for third wheeling you but your bromance third wheels me too!!! ?" she wrote.
Looks like this is gonna be quite the party!
VS model Behati Prinsloo, whose Maroon 5 rocker husband Adam Levine headlined the show last year, wrote, "Something big is definitely on its way ? @angelcandices @davidbellemere @victoriassecret."

Guess we have something to look forward to in 2016!
In the meantime, here's Demi talking about a possible proposal from Wimer Valderrama!