Girls’ Generation’s Tiffany has dropped a fierce and glamorous music video for her new solo song “Teach You”!

The video features Tiffany hanging out with her trusty Girls’ Generation bandmates Sooyoung and Hyoyeon, who clue her in to the fact that her boyfriend—played by “SNL Korea” star Kwon Hyuk Soo—is cheating on her. Needless to say, Tiffany is more than prepared to confront him and bring him to justice.

The song’s lyrics, which were co-written by Tiffany herself, similarly warn a cheating boyfriend that he’ll pay the price for his misdeeds.

Check out Tiffany’s stylish new music video for “Teach You” below!