T-ara is a South Korean girl group that first made an appearance in 2009. Originally with five members, it became six in 2009 and finally ended up with eight by 2012. They have a unique method of leadership within the group as they use a rotating system. With hits such as Bo Peep Bo Peep, after a break, they have recently released a new single called “No-9”. They are one of the most succesful girlbands in the world (ever!). These are T-ara top 10 greatest songs.