The popular KBS 2 TV entertainment program 'Superman Returns' comedian Lee Hwi Jae got relieved about his twin son Lee Suh Uhn after the twins had a physical fitness test.

On the most recent episode of the popular KBS 2 TV entertainment program 'Superman Returns,' the Song Il Gook family, the Lee Hwi Jae family, the Choo Sung Hoon family, and the Uhm Tae Woong family enjoyed spending time with the children. On the November 1, 2015, episode, Lee Suh Uhn and Lee Suh Joon visited a pediatrician's office to check their physical fitness. After the test, it was found out that Lee Suh Uhn and Lee Suh Joon could hold onto a pull-up bar longer than ever before, and grew stronger overall. In related news, the KBS 2 TV entertainment program 'Superman Returns' tells a story of Korean celebrity dads and their children. Actor Song Il Gook and his triplets Song Dae Han, Song Min Gook, and Song Man Sae, MMA fighter Choo Sung Hoon and Japanese top model Yano Shiho's daughter Choo Sarang, actor Uhm Tae Woong and his daughter Uhm Ji On, and comedian Lee Hwi Jae and his twin sons Lee Suh Joon and Lee Suh Uhn star in the show. The KBS 2 TV entertainment program 'Superman Returns' airs every Sunday night.