Lately, the American professional wrestler has been making posts relating to the K-Pop group on Instagram. The most recent one on February 9 is a photo of BTS' hit track "MIC Drop".

A post shared by John Cena (@johncena) on Feb 8, 2018 at 7:06am PST

Three days earlier, John Cena posted a photo of j-hope with no particular description. Fans assume j-hope is his favorite member of the group. 

A post shared by John Cena (@johncena) on Feb 6, 2018 at 7:32am PST

At John's unexpected posts, ARMYs commented, "Are you an ARMY now??", "I'm Glad you can see what good music is all about", "CENA IS AN ARMY."