McDonald's is launching a new Happy Meal collaboration with the K-pop group BTS. The restaurant chain posted an image of a Happy Meal box and seven tiny figurines on social media on Monday that appeared to show the TinyTAN animated characters based on the famous seven-member boy band.

McDonald’s latest Pokémon-themed Happy Meals promised a playful mix of nostalgia and excitement. Instead, the launch sparked an unexpected frenzy that swept across Japan, leaving restaurants overwhelmed and the promotion cut short.

The Pokemon Company and McDonald's have teamed up before, but not without attracting undo attention from would-be scalpers. Earlier this month, McDonald's Japan was forced to end its latest Pokemon Happy Meal promotion a few days early because the supply of cards quickly ran out amid chaotic crowds clamoring for the cards that came with them.