Happy Box Part.2

"Happy Box Part.2"
Artist	SONAMOO
B-side	"Prequel"
Released	November 6, 2017
Format(s)	Download, streaming
Recorded	2017
Genre	Dance
Length	5:02
Label(s)	TS Entertainment
Distributor(s)	Kakao Entertainment
Credits
Writer(s)	Jung Ho Hyun (e.one) (Track 1 & 2) Choi Hyun Jun (e.one), New Sun, D.ana (Track 2)
Composer(s)	Jung Ho Hyun (e.one) (Track 1 & 2) Choi Hyun Jun (e.one) (Track 2)
Arranger(s)	Jung Ho Hyun (e.one) (Track 1 & 2) Choi Hyun Jun (e.one) (Track 2)
Release chronology
Previous	"Happy Box Part.1"
Next	"We Are Legendary"

"Happy Box Part.2" is the second digital single by SONAMOO. It was released on November 6, 2017 with "I (Knew It)" as the single's title track. It is the second of their three-part "Happy Box" project.

Track list

1. "Prequel" - 1:19
2. "I (Knew It)" - 3:43

Video links

• "I (Knew It)" music video
  • M/V trailer
  • Individual teaser 1
  • Individual teaser 2
  • M/V behind
• "I (Knew It)" dance practice