Interlude: Regular to Irregular
 作曲 : Hitchhiker/김경민
Piano Performed by 김경민
Guitar Performed by Hitchhiker
String Performed by ON the string
Background Vocals by NCT 쟈니 / NCT 유타 / NCT 윈윈 / NCT 정우
Recorded by 신대섭 @ YIREH STUDIO / 정기홍, 최다인 (Assistant. 이찬미) @ Seoul Studio / 정호진, 온성윤 (Assistant. 최진영) @ sound POOL studios
Digital Editing by Hitchhiker / 정의석 @ SM Blue Cup Studio
Mixed by 정의석 @ SM Blue Cup Studio
Original Title: Interlude Regular to Irregular
Original Writers: Hitchhiker / 김경민
Original Publisher: EKKO Music Rights (powered by CTGA) / Copyright Control
JUNGWOO/정우（金廷祐）：
2014년 6월 20일 2014年6月20日
SM 연습생 생활을 처음 시작했다 （我）在SM初次开始了练习生生活
모든 것이 새롭고 다 설었지만 虽然所有的东西都感到又新颖又生疏
꿈 다로 끝 但“梦想”
꿈이 라는 것을 꾸기 시작했다 那个被称作“梦想”的东西，在这里开始了
YUTA/유타（中本悠太）：
日本から始また 从日本开始就怀有的梦想
僕の夢をまだ遠く感じる 感觉它仍然很远
でも、僕たちと一緒に少しずつ，近づいてるように思える 但是我们一起一点一点的接近了（梦想）
君も今頃は，僕の夢を見ることができるかな？ 此刻，你们也能看到我的梦想了吗？
WINWIN/윈윈（董思成）：
在梦境
我看到了波浪
打动了我的内心深处
Johnny/쟈니（徐英浩）：
All the we see, we sing is about dream, but didn’t dream 我们所见，所歌，皆为梦，又非梦（似梦非梦）