Happy Days is the fourth single by Otsuka Ai.
Information[]
- All Lyrics: Ai
- All Composition: Ai
- All Arrangement: Ai, Ikoman
Tracklist[]
CD[]
- Happy Days
- Hoshikuzu (星くず)
- Happy Days (Instrumental)
- Hoshikuzu (星くず) (Instrumental)
DVD[]
- Happy Days (Music Clip)
Audio[]
Videos[]
大塚 愛 Happy Days
Happy Days 大塚 愛