Defeat but twilight, pinke pie and ??? Sings it

Inspired animated by ‪@PinkieCovers-16‬ Cover made by me ~story~ After the cover of "hope in friendship" a tough fight with corrupted applejack, rarity and fluttershy. pinkie pie left rainbow dash to go look for twilight sparkle to see if she is ok. But she doesn't feel like herself anymore. Here back is turned, pinkie pie was worried about this, it's turns out twilight was infected by the pibby corruption! Pinkie pie now has to face her closest friend who is corrupted but pinkie pie sees twilight's mind trapped in the corruption, and a special guest has joined to help twilight and also celestia, and that's how the cover of "defeat" began!