ZE:A's Hyungsik recently shared a few photos he took with TVXQ's Yunho.

Hyungsik posted the photos on his Twitter with, "I performed the final of the musical 'Gwanghwamun Sonata' with TVXQ's Yunho. I was glad I could witness his�extreme professionalism! Thank you everyone for cheering me on! Amazing! I think we kind of look alike.... I'm sorry."

The musical 'Gwanghwamun Sonata' opened in Japan on the 22th and will continue on until the 27th. Idol stars such as TVXQ's Yunho, ZE:A's Hyung Sik and Kevin, FT Island's Min Hwan, Mblaq's G.O and Seung Ho, B2st's Yo Seob, Infinite's Sung Kyu and Woo Hyun, Seo In Guk, and more participated along side the original casts.

Source + image via Hyungsik's Twitter