Lee Seung Gi, TVXQ's Yunho, along with Super Junior's Eunhyuk and Shindong gathered to prepare for the upcoming 'Army Festival'.

The event for army troops is the largest military festival for soldiers in South Korea. The 'Army Festival' posted the photos to its official SNS, and fans of the four celebrities were excited to see them doing well.

It seems as if army life isn't being too rough on them as Lee Seung Gi, Yunho, Shindong, and Eunhyuk all look to be in good spirits. In another photo, Yunho and Lee Seung Gi also flash smiles for the camera.

The '2016 Army Festival' will be held for 5 days from October 2-6, and Girl's Day along with Red Velvet are also set as guest performers.