The ladies of Girl's Day made a surprise appearance on the latest episode of 'Running Man'!

The cast members and guests -- Park Shin Hye, Choi Jin Hyuk, and Kim Woo Bin -- had been divided into two teams, and the final mission had them spreading out inside the SBS building to collect signatures from a pre-determined list of celebrity cameos.

Minah and Yura, watching the proceedings below, was cornered by Park Shin Hye who demanded their autograph.�

However, the rest of the teams soon caught up to them, leading to a fierce fight over Girl's Day's autograph -- a sentiment we can all share!

Check out their cuts for this week's episode below.

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