T-ara is a South Korean girl group, formed in 2009 by MBK Entertainment. T-ara's career is marked by hook-heavy dance-pop music, a result of their close partnership with composer Shinsadong Tiger. A broad array of visual concepts have earned the group a "chameleon-like" reputation.
The group officially debuted in July 2009 with the single "Lie", following line-up changes due to creative differences. Their debut studio album Absolute First Album was released in December 2009 and spawned several hit songs including "TTL", "Bo Peep Bo Peep", and "You Drive Me Crazy".
T-ara gained nationwide recognition after releasing "Roly-Poly" in 2011, which went on to become the Gaon chart's best-selling single of the year. At the height of K-pop's popularity in Japan, T-ara signed onto management agency J-Rock for $4.7 million—reportedly the highest figure of any Korean girl group expanding into the territory at the time. Both their debut Japanese single and studio album reached number one on the Oricon weekly charts and were subsequently certified Gold. T-ara's late-2011 Korean release Black Eyes spawned three consecutive number ones: "Cry Cry", "We Were in Love" and "Lovey-Dovey".
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