T-ara
In October 13, T-ara signed a contract with Chinese record label Longzhen Culture Development. The contract was worth 5 billion KRW (~4.8 million USD). Then in November, T-ara made a cover version of the Chopstick Brothers' song "Little Apple". It is partly in Korean and partly in Chinese, and includes the Chopstick Brothers for the chorus. This music video had ́8 million views within the first two days.