TEEN TOP fans will be sad to hear that Changjo suffered an injury before their "Rocking" comeback stage. 

It was revealed at the press conference for their 'TEEN TOP CLASS' mini-album that Changjo tore a ligament during dance practice. He stated, "While doing a powerful dance called the free step during practice, my ligament tore. The other members also strained their muscles and sustained injuries.The choreography is that difficult, but we went through it to show what only TEEN TOP can show."

TEEN TOP also commented on their latest release, saying, "It's been a while since we came out with a new album. We prepared a lot for it. I hope it receives a lot of love. It'd be nice if the results were as good as much as we put into it."

SEE ALSO: TEEN TOP's mini album 'TEEN TOP CLASS' is out + 'Rocking' MV

Hopefully, he's fully recovered by now! What did you think of TEEN TOP's "Rocking" MV?