Musically, "Jeon Won Diary" is a dance-pop song with elements of hip-hop, while the lyrics are about wanting to escape from the day-to-day routine.

In late March 2013, T-ara's agency Core Contents Media were in the midst of forming a new unit from the group with the members Eunjung, Areum, Jiyeon and Hyomin.

[2] Produced by Duble Sidekick, the song is said to have "funky and intense" dance music combined with elements of hip-hop,[3] with the main motif of "Jeon Won Diary" being about breaking away from the same everyday routine.

[5] The video features cameo appearances from singer Kim Wan-sun, politician Huh Kyung-young, actor Jung Woon-taek, retired baseball player Yang Joon-hyuk, Davichi's Kang Min-kyung and Speed (aside from Tae-woon's rap verse, the other Speed members can be seen dancing alongside T-ara N4 in the end of the video).

[6] Choi Bool-am and Kim Soo-mi, both actors from the Jeon Won Ilgi TV drama, came together for the first time in eleven years to appear in the video.