T-ara
In July 2012, T-ara released their fourth extended play (EP), with the title Day by Day. It made it to number five on the Gaon chart. The title track, also called "Day by Day", was released as a single on the same day. It made it to number two on the Gaon chart. On July 7, T-ara performed "Day by Day" live on Music Core with a 70-person orchestra. This was the first time Areum performed with the group.