Panic! At The disco's "Camisado," along with two other songs were originally created long before their debut album "A Fever You Can't Sweat Out." These demos were sent to Fall Out Boys Pete Wentz who loved the songs so much, he invited the band to join their newly made record label "Decaydance Records." They of course accepted their invitation. To learn more about this, check out the Wikipedia article below:
https://en.wikipedia.org/wiki/A_Fever...

Thanks for listening and I hope you enjoy!

I do not own anything in this video. All credit goes to Panic! At The Disco