Happy Days

"Happy Days"
Artist	B1A4
B-side	"Drive - Japanese Ver. -" "Colorful"
Released	November 18, 2015
Format(s)	CD, download, streaming
Recorded	2015
Label(s)	Pony Canyon
Distributor(s)	Pony Canyon
Credits
Writer(s)	Jinyoung, MEG.ME ("Happy Days") CNU, Baro ("Drive") MEG.ME ("Colorful")
Composer(s)	Jinyoung ("Happy Days") CNU, Jinyoung, Cheeze ("Drive") Kendall Gaveck, Andreas Oberg, Sean Alexander, Darren Smith ("Colorful")
Release chronology
Previous	Sweet Girl
Next	"It′s Christmas"

"Happy Days" is the sixth Japanese single by B1A4. It was released on November 18, 2015 with "Happy Days" serving as the single's title track.

The album was released in four editions: a limited CD+B1A4 Special Book edition (A), a limited CD+DVD edition (B), a regular CD Only edition, and a limited CD Only BANA Japan edition, only available for BANA Japan members to purchase. Both limited editions and first presses of the regular CD only edition includes an individual autograph session participation ticket or a gift application lottery ticket. The limited BANA Japan edition comes with a "K-BOYS×smart" special book.

Track list

Regular Edition

1. "Happy Days" - 3:50
2. "Drive - Japanese Ver. -" - 3:49
3. "Colorful" - 3:46
4. "Happy Days (Instrumental)" - 3:50
5. "Drive (Instrumental)" - 3:49
6. "Colorful (Instrumental)" - 3:46

Limited Editions

1. "Happy Days" - 3:50
2. "Drive - Japanese Ver. -" - 3:49
3. "Happy Days (Instrumental)" - 3:50
4. "Drive (Instrumental)" - 3:49

BANA Japan Edition

1. "Happy Days"
2. "Bana Song"
3. "Happy Days (Instrumental)"
4. "Bana Song (Instrumental)"

DVD

1. "Happy Days" Music Video
2. "Happy Days" Music Video Making