Singer K-Will and X-5's Gun both made a cameo in the 10th episode of KBS's 'Spy Myung Wol', which currently stars Shinhwa's Eric and actress Han Ye Seul. On August 9th, viewers saw the two guest stars act out a scene from the past, in which K-Will appears as a sunbae singer to the trainee 'Kang Woo', who was played by X-5's Gun. K-Will, 'President Joo' (played by Lee Deok Hwa), and 'Kyung Jae In' (played by Park Hyun Suk) had all humiliated Kang Woo (Eric) as they talked amongst themselves. While the young Kang Woo was dancing, K-Will said, "There are lot of faces like that in Southeast Asia," indicating that Eric's face was too foreign-looking to make it in the business. Viewers responded well to the cameos, as they said, "I was happy to see K-Will, even for just a short time" and "Gun's performance wasn't bad!" You can see K-Will's and Gun's parts in the video below. Source: TVDaily via Nate