Group Girl's Day's member Minah showed interest in the idol group B2ST.

In SBS "Running Man" aired today, idols came out for the 'The King of Idols' special.

On this day, original Running Man members each joined one idol group to dance with them.

When the idol groups had to join one team to play games and only 2PM and B2ST were left as choices, Minah said, "B2ST B2ST," showing her interest.

But when members started making fun of her, Minah blushed and covered her face.

Internet users who saw this commented, "I didn't know Minah is B2ST's fan," "Poor 2PM," "She must've been so embarrassed," and "She must be a really big fan."

Photo Credit: SBS