It's no secret that HOTTESTs have missed 2PM during the long wait. The boys came to 'Yoo Hee Yeol's Sketchbook' to share behind-the-scenes stories and perform for all of you who waited!

During their interview, 2PM revealed the story of how Jun.K was originally a 2AM member and 2AM's Jo Kwon was originally a 2PM member. The group also shared how surprised they were that J.Y. Park made an acronym for the title of their title track, "A.D.T.O.Y.", after he previously expressed his dislike of acronyms. 

Taecyeon and Wooyoung brought their unique talents, and the 'beastly idols' shared how much they've 'grown' musically with their active involvement in composing, writing, and singing for their new album, making each song their own to break out of the standard JYP-esque music.

Check out 2PM's interview and performances below!

2PM's interview

"Heartbeat"

"A.D.T.O.Y."