T-ara's Eunjung has been spotted filming for an upcoming episode of SBS 'Running Man'!

Various online portal sites posted the photos above, where the singer is sporting athletic gear, filming alongside other idols such as Super Junior's Eunhyuk, ZE:A's Siwan, B2ST's Doojoon, and more.

It looked as though there would be some competition between the guests and the fixed 'Running Man' cast members, as the idols were dressed in blue sweatsuits while Song Ji Hyo, Ji Suk Jin, HaHa and others were snapped dressed in black and white.

This particular 'Running Man' shoot was for the upcoming '2012 London Olympics' special of the program, and also participating in the shoot were CNBLUE's Yonghwa, and MBLAQ's Lee Joon.

The episode airs on July 22nd at 6PM!

Source & Image: StarToday via Nate