Pops in Seoul - T-ara (Day by Day) 티아라 (Day by Day)

Once at One This is the title track of T-ara's mini album of the same name. This was composed by Cho Young-soo and Kim Tae-hyun with the lyrics written by Ahn Young-min. It's about a woman who is heartbroken after breaking up with her boyfriend, and Hwa-young's quiet rap in the intro sets the mood of the song. The rough yet poetic lyrics and the members' boyish vocals are quite impressive.