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Prepare to fangirl. In what is sure to be the most epic Lip Sync Battle of all time (though the Tatum’s battle is hard to top), America Ferrera and Amber Tamblyn, both stars of the Sisterhood of the Traveling Pants series, just announced that they’re going to be battling it out, and our hearts can hardly take it.

Ferrera announced her excitement for the debut on social media, saying “Can’t wait for you guys to see the craziness that went down!! @amberrosetamblyn Slayed me dead! #lipsyncbattle #duelingsisters”

And Tamblyn seems more than confident in her post, saying “So excited to announce the newest sister to the ‘hood, @llcoolj. Maybe, just maybe, we did #LipSyncBattle today and maybe we just killed it”

We don’t even know how to express how *pumped* we are to see the Sisterhood of the Traveling Pants stars get down and sing their hearts out on one of the funniest shows out there. We love nothing more than sisterhood, and love that we’ll have the chance to see this killer pair come together again.

Their friendship is totally stunning, and we’re obsessed with the soon-to-be-released (HOPEFULLY?!) Sisterhood of the Traveling Pants 3, which will obviously blow our minds and leave us sobbing on our BFFs.