Please answer the following question: Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Loving U -  Loving U is the second mini album a summer special album by Korean girl group Sistar. It was released on June 28 2012 with the song of same title will be used as the promotional song. It is listed as a summer special album and contains two new songs'Loving U' and 'Holiday' and 5 remixes of the group's past hit-singles.
Answer:
Album