Pentagon's Hongseok has launched his own Instagram!

On June 25, he shared the photos below as his first post along with the message, "Hi there." Though it's only been an hour since he made the post, the Pentagon member already has over 10.5K followers. 

As Pentagon member Yuto recently opened an Instagram as well, fans are expecting the group to be active with solo promotions after their special digital single "DO or NOT" this past March.

In other news, Hongseok is starring in the upcoming 'Playlist' drama series 'Blue Birthday' alongside Red Velvet's Yeri, which is set to premiere on Naver TV on July 23 KST and YouTube on August 6 KST.