Charli's remix album, 'Brat and it's completely different but also still brat,' is out Oct. 11 When Charli xcx was looking for the right person to feature on a remix for "Sympathy Is a Knife," she thought of Ariana Grande.

The 32-year-old singer has already shared her remixes of "360," "Talk Talk," "Von Dutch," "Girl, So Confusing" and "Guess," featuring Robyn and Yung Lean, Troye Sivan, A.G. Cook and Addison Rae, Lorde and Billie Eilish, respectively.