Britney Spears flips the bird during her latest video as she seemingly throws MORE shade at Justin Timberlake

Britney Spears shows off her moves as she dances in VERY skimpy grey dress after shading Justin Timberlake

Britney Spears appears to take swipe at Justin Timberlake with two-word comment

Shade Backfired?! Britney Spears 'Appreciates' Justin Timberlake Admitting Cry Me A River Is Disrespectful!