Um Tae-goo is ditching his mobster image for "Zero," the most unhinged rapper in K-pop history. In the upcoming Netflix horror Wild Sing, he rocks blonde hair, gold chains, and blood-soaked streetwear.

He’s rapping his heart out while bandmates disappear! It’s chaotic, hilarious, and terrifying.

The legend even recorded his own verses. Prepare for the ultimate 2025 musical nightmare!