1-1=0 (Nothing Without You) is a repackage of Wanna One's debut mini-album 1X1=1 (To Be One). The repackage serves as a prequel to their first album. It was released on November 13, 2017 with four new tracks: the title track “Beautiful", "Wanna", a funky EDM ballad, “Twilight”, a bubbly dance track and “Nothing Without You”, the album's harmony-laden intro. The physical release comes in two versions: Wanna and One.

Track list
1. Nothing Without You (Intro)
2. Beautiful
3. Wanna (갖고 싶어)
4. Twilight
5. Burn It Up (활활) (Prequel Remix)
6. Energetic (에너제틱) (Prequel Remix)
7. Wanna Be (My Baby)
8. Energetic (에너제틱)
9. Burn It Up (활활)
10. To Be One (Outro)