T-ara
In December, T-ara performed in Korea with the song "Do You Know Me". They also released a repackaged album titled Again 1977. It contains the most popular songs from Again. The group also released a ballad version of "Do You Know Me". Later in the month, T-ara released the Christmas song, "Hide & Seek". By the end of 2013, T-ara was ranked seventh in by number of top songs in the past decade.