Uh oh! Nobody messes with Miley Cyrus!
Avril Lavigne, clearly, learned that the hard way! LOLz!!
Mileybird took to her Instagram to show the world that she's the most famous person in all of Canada!
Except Avril didn't exactly agree with her, so the two ladies did what came naturally.
They had a cat fight! RAWR! And some potty-mouth trash talk was thrown around!
The ladies fought it out to decide who holds the prestigious title!
But who was the winner? Ch-ch-check out their playful fist fight…AFTER THE JUMP!!!
While it's CLEARLY a HIGHlarious joke, whether it's an April Fools' prank or not remains to be seen…
Regardless, we LOLed hard at it!
Who do U think is the most famous person in Canada?!
Tags: avril lavigne, canadialand, highlarious, instagram, joke, miley cyrus, prank, remains