On December 14, Seohyun communicated with fans via Instagram live. Thousands of fans across the world tuned into the live broadcast, and among the thousands of SONEs, was Keegan Allen!

SEE ALSO: Hyoyeon, Bomi, Lim Na Young, and more being held in Bali after variety show filming crew fails to obtain filming permits

The Hollywood actor was captured watching Seohyun's live broadcast and reacting with comments, such as, "Hi", and "Yay."

Not only this, Keegan Allen follows Seohyun as well as the other Girls' Generation members on Instagram. He also follows other K-Pop girl group members such as Krystal, Jessica, Yura, Suzy, Hani, Sulli, and more. 

He must really be a big K-Pop fan!