Days (Hamasaki Ayumi)
- Hamasaki Ayumi
- Hamasaki Ayumi
- Tago Kunio
- Other Information
- Programming, Arrangement: HAL
- Additional Programming: Maruyama Mayuko
- Drums: Tamada Tom
- Guitar: Shimizu Takehito
- Mixing: Morimoto Koji
"Days" is a song recorded by Hamasaki Ayumi, first released as an A-side on her single "Days / GREEN". The song is described as a classic winter ballad with sad lyrics. It was used as the commercial song for NTT Communications' "MUSICO".
- [2008.12.03] FNS
- [2008.12.05] Music Station
- [2008.12.16] Best Artist 2008
- [2008.12.28] Music Japan
- [2008.12.20] CDTV
- [2008.12.31] PREMIUM COUNTDOWN LIVE 2008-2009 A
-  ARENA TOUR 2009 A ~NEXT LEVEL~
-  ayumi hamasaki ~POWER of MUSIC~ 2011 A
There are six versions of "Days" to be found in Hamasaki Ayumi's discography. These are:
- Found as an A-side on the "Days / GREEN" singles, and on NEXT LEVEL as track #13.
- Days (Instrumental)
- Found on the "Days / GREEN" singles. This is the standard version of the song without the main vocals.
- Days (8-bits of tears YMCK remix)
- Found on the CD Type A "Rule / Sparkle" single as track #3. The remix features 8-bit instruments and vocoder.
- Days (Acoustic Orchestra Version)
- Found on the CD Type A "Rule / Sparkle" single as track #4. It features a new orchestra and strings arrangement.
- Days (PREMIUM COUNTDOWN LIVE 2008-2009)
- Found on the second DVD of ayumi hamasaki PREMIUM COUNTDOWN LIVE 2008-2009 A as track #11. The arrangement is similar to the standard version of the song.
- Days (ARENA TOUR 2009 Live)
- Found on ayumi hamasaki ARENA TOUR 2009 A ~NEXT LEVEL~ as track #13. The arrangement is similar to the standard version of the song.
- Days (Aly & Fila remix)
- Found on ayu-mi-x 7 presents ayu trance 4 remix album as track #4. It is a remix made by the egyptian duo Aly & Fila.