In March 2013, T-ara released their sixth Japanese single, with the title "Bunny Style!" It was their first song made just for the Japanese market. It was released in ten different editions. Each of these included a different second song along with "Bunny Style!" Seven of them had a solo song by one of the T-ara members. Three of them had a song performed by a sub-group (a smaller group formed from members within T-ara). To promote the single, T-ara held special concerts in 10 Japanese cities.