A serious feud has erupted between two of our favorite groups, and it all started with a comment that the Vamps made about Fifth Harmony's Lauren Jauregui during a recent interview.

To bring you up to speed, rumor has it that the Vamps' frontman Brad Simpson and 5H's Lauren Jauregui have called it quits after dating for a while. While down in Australia, an interviewer asked Brad about the status of his relationship with the 5H singer, and before he had a chance to answer, his bandmates jumped in. (The Vine appears to have been deleted.)

"I haven't dated her for a while," James replied.

"Yeah, I was April to December," Tristan added, while James claimed, "We've all had a bit of a go." Whoa. Not cool.

Needless to say, Harmonizers were NOT pleased, taking to Twitter to voice their strong opinions and start several worldwide trends, including: #LaurenIsOurPrincess, #LaurenDefenseSquad and more.

And 5H fans weren't the only ones to respond -- Lauren herself linked off to the Big Sean song, 'I Don't F--- With You' (in a tweet that his since been deleted), while Camila Cabello was a little more straight-forward, writing:

Little Mix fans were also supportive of Lauren and 5H fans, making #MixersAreHereForHarmonizers trend worldwide as well, proving that feminism and girl power can truly conquer all.

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