Male group 2PM has used moss code for their comeback.
On March 31, 2PM's management agency JYP Entertainment posted a teaser video titled 'Code #1' with mysterious moss code on its official Twitter.
The video contained a short seconds of beeps.
2PM's fans instantly recognized the beeps as moss code and started to decipher the secret message. They found out the message is, "2PM is back."
Meanwhile, 2PM's Taecyeon tweeted, "How was 2PM's moss code as an event for April Fools' Day?" showing his gratitude to fans interested in the secret moss code.