The video is pretty insane, showing two young girl (representing Demi and Christina), being stolen away by these two men dressed as robots. They're chained up and forced to do things against their will, until Xtina breaks free and releases Demi too.
Fans have a wild theory about the whole thing that relates back to Disney.
Twitter user @demetriaaalove wrote, "Demi Lovato and Christina Aguilera were both children actors in Disney and under public scrutiny, them teaming up and overcoming it is the concept of the Fall In Line music video."
They even point out how the prison guards keep them in their cells only to let them out to perform.
Pretty telling, don't you think?
"Demi is shown to be imitating her famous scene from Camp Rock in the video, showing that at that time she was be controlled while with Disney."
In case you weren't born yet, Christina started her career on The All New Mickey Mouse Club. As we know, Demi got her big break on Camp Rock alongside the Jonas Brothers.
Christina said about the song when it was first released, "To anyone who's ever felt silences and repressed, the truth seekers and bold thinkers... may you liberate your voice and break the mold, never back down, and never fall in line."
Watch the video below: