Miley Cyrus Wears A Weed Onesie While Fighting Avril, The Internet Rejoices

Avril and Miley fighting it out.

Can someone get Céline Dion in here to referee?

We originally thought that Justin Bieber would have beef with Avril Lavigne over being named the "Most Famous Canadian," but it turns out that the "Bad Girl" singer's biggest hater is none other than the red-blooded, all-American Miley Cyrus.

The "Adore You" singer shared an Instagram video of her in a wacky tobacky-emblazoned onesie, fuming over Avril's Canuckian popularity. Gird thy marijuana maple leaf, Avril! It's about to get ugly.

"F*** dat Canadian b**ch @avrillavigne," Miley captioned, and it only goes downhill once you hit play. "I may not be Canadian, but I'm the most famous person in Canada," she shouts at the noted poutine enthusiast.

Speaking of which, slather some of that Canadian delicacy over a bowl of popcorn, and watch as this epic (and possibly April Fool's-inspired?) catfight plays out.

+ Watch Miley Cyrus fight with Avril Lavigne over who's the most famous person in Canada!

Photo credit: Avril Lavigne's Instagram