Earlier this month, punky boy band 5 Seconds of Summer channeled Orange is the New Black by heading to a "reform" school for bad girls for its sassy "Good Girls" music video. Three weeks after the original clip debuted, 5SOS went back to school to takes its fans behind the scenes of "Good Girls."

In a VEVO video released today (Oct. 31), 5 Seconds of Summer treated its fans with some insight on the "Good Girls" music video.

5SOS member Ashton Irwin admitted that "Good Girls" was his favorite music video of the band's to date, even if he does go creeper status during the video shoot. "Basically, there's a lot of girls screaming and I'm watching them from behind bars. That's not creepy at all," he joked.

There are plenty of fun seeds of information in this music video. That the "X" across posters is actually an upside down X, that the message behind "Good Girls" is destined to tear down expectations of women to be quiet and that the band has distinct "rock" outfits.

There are also a few bonus nuggets, like the band playing with some megaphones (likely to the annoyance of everyone around them). Oh, and Irwin and Luke Hemmings are totally pantsless at another point...

Watch the behind-the-scenes video for 5 Seconds of Summer's "Good Girls" below:

"Good Girls" is the latest single from 5 Seconds of Summer's self-titled debut album. 5 Seconds of Summer was previously been led by "She Looks So Perfect," "Don't Stop" and "Amnesia."

Join the Discussion