While viewers are highly anticipating Manchester United's Park Ji Sung's appearance on next week's continuing episode of 'Running Man', it has been revealed that singer IU will be serving as a guest as well.

Photos of the singer participating in a recording of the show along with the soccer player have quickly spread like wildfire on various Social Networking Sites, and they were gathered and uploaded onto an online community board May 21st with the title, "IU and Park Ji Sung are currently filming 'Running Man".

Based on the photos, it looks as though Park Ji Sung teamed up with Yoo Jae Suk and others on the green team, while IU will be partnered with HaHa, Gary, and more on the blue team.

According to social networking users who shared the photos, the filming took place on May 21st in Incheon. Anticipation is building for this upcoming episode as fans left comments such as, "This is daebak!", "I can't wait until this episode airs!", "I wonder what IU and Park Ji Sung's interaction will be like", "'Running Man' always has the best guests", and more.

The May 20th episode of 'Running Man' featured Park Ji Sung assigning missions to the cast members, while special guest-appearances were made by SISTAR and MBLAQ. Park Ji Sung will officially be participating in the races with the other 'Running Man' members on the episode to air on May 27th.

Source & Image: Sports Chosun via Nate