0+1=1 (I Promise You)

0+1=1 (I Promise You)
Type	Mini
Artist	Wanna One
Released	March 19, 2018 (digital) March 20, 2018 (physical) March 21, 2018 (Japan) April 20, 2018 (Taiwan)
Format(s)	CD, download, streaming
Recorded	2017-2018
Length	24:41
Label(s)	Stone Music Entertainment YMC Entertainment Pony Canyon (Japan) Warner Music Taiwan (Taiwan)
Distributor(s)	Genie Music Stone Music Entertainment Pony Canyon (Japan) Warner Music Taiwan (Taiwan)
Release chronology
Previous	"I Promise You (I.P.U.) - Special Theme Track"
Next	1÷x=1 (Undivided)

0+1=1 (I Promise You) is the second mini album by Wanna One. It was released on March 19, 2018 with "Boomerang" serving as the album's title track. The song "I.P.U." was pre-released on March 5.

"Boomerang" and "Gold" were leaked online on March 14.

The physical release comes in two versions: Day and Night.

Track list

1. "Gold" - 3:39
2. "I.P.U. (약속해요)" - 3:40
3. "Boomerang (부메랑)" - 3:03
4. "We Are" - 3:21
5. "Day By Day (보여)" - 3:06
6. "I'll Remember (너의 이름을)" - 3:34
7. "I.P.U. (Propose ver.) (약속해요 (고백 ver.))" - 4:18

DVD (Taiwan Night ver. edition only)

1. "Boomerang" music video (Chinese subtitles)
2. "I.P.U." music video (Chinese subtitles)
3. "Beautiful" music video Movie Ver. (Chinese subtitles)
4. "Beautiful" music video Performance Ver. (Chinese subtitles)
5. "Energetic" music video (Chinese subtitles)
6. "Energetic" music video Performance Ver. (Chinese subtitles)
7. "Burn It Up" music video (Chinese subtitles)
8. "Wanna Be (My Baby)" music video Live Ver. (Chinese subtitles)

Certifications

Gaon

Year	Date	Certification	Units	Ref.
2018	May 10	Triple Platinum	750,000 (album-equivalent)

Merchandise

An official merch package, containing a set of goods and a cassette tape, was sold in May 2018.

Gallery

Coming soon teaser (1)

Coming soon teaser (2)

Album packaging detail

Title track poster

Track list

D-1 photo

D-Day photo

Video links

• "Boomerang" music video
  • Teaser 1 / 2
  • Making-of
  • Behind-the-scenes
• "Boomerang" dance practice
• Album preview