MBLAQ's Lee Joon and actress Gong Hyo Jin are up next to guest-feature on popular SBS variety program, 'Running Man'!

On August 16th, witnesses have spotted actress Gong Hyo Jin interacting with the 'Running Man' cast members on set, and photos quickly spread on various SNS (Social Networking Sites).

One netizen uploaded the photos onto an online community forum with the title, 'It's a relief to see Gong Hyo Jin looking very bright'. The user was expressing concern over Gong Hyo Jin's recently announced breakup with actor Ryu Seung Bum, who she was in a relationship with for over 10 years.

In addition to Gong Hyo Jin, MBLAQ's Lee Joon participated in the shoot to fill in for fixed cast member Gary.

Netizens who heard the news commented, "Highly anticipating this episode!", "Gong Hyo in is so lovable", "I can't wait!", and more.

The episode featuring Gong Hyo Jin and Lee Joon is scheduled to air on August 26th.

Soruce & Image: Money Today via Nate