- Come Closer
- Nahonja (Alone) (나혼자; Myself)
- No Mercy
- Lead Me
- Girls On Top
- Neol Saranghagesseo (I Choose to Love You) (널 사랑하겠어; You Will Love) (Zoo Cover; Hyo Rin solo)
- Nahonja (Alone) (inst.) (나혼자 Myself)
ALONE is SISTAR's first mini-album. The song "Nahonja (Alone)" was used as the lead single. The song "Neol Saranghagesseo (I Choose to Love You)" was previously released by Hyo Rin on her second solo digital single "Sarangeul Boda 2".