"Unite!" is the twenty-third single by Ayumi Hamasaki, released on July 11, 2001. It is her sixth single released in Germany.

Unlike most of her other A-sides and some of her B-sides, Unite! has no PV. It has been performed on various occasions and has been featured on a commercial, yet no promotional video was ever aired.

Unite! was the background music in Hamasaki's last commercial for Kirin Supli.

Asia-released single

1. "Unite!" – 5:00
2. "Unite!" (Huge UR-Chin mix)
3. "Unite!" (hecco's club vocal mix)
4. "Unite!" (re-Formation MIX)
5. "Endless sorrow" (Dub's Forever Mercy Mix)
6. "Unite!" (PROJECT O.T ATOMIX MIX)
7. "Unite!" (PSYCHO TRANCE MIX)
8. "Unite!" (No.1 Blueberry Wonderful)
9. "Key" (nicely nice waterfowl remix)
10. "Unite!" (Instrumental) – 5:00

Germany-released single

1. "Unite!" – Airwave vocal edit
2. "Unite!" – Moogwai radio edit
3. "Unite!" – Alt+F4 radio edit
4. "Unite!" – Robert Gitelman radio edit
5. "Unite!" – Alt+F4 remix
6. "Unite!" – Robert Gitelman remix
7. "Unite!" – Airwave dub mix

Oricon Sales Chart (Japan)

• RIAJ certification: 2× Platinum