T-ara N4 is a South Korean sub-unit of the girl group T-ara, with members Eunjung, Hyomin, Jiyeon, and previously Areum until their departure from the T-ara in July 2013. The subgroup released only one longer piece, Jeon Won Diary. The sub-unit debuted in 2013.
"Jeon Won Diary" reached No. 11 on the Gaon chart and sold more than 500,038 digital copies .