J-Star stands for Jungiery Star. Jungiery is a Taiwanese Artiste Management Company. Members of J-Star are: 5566, 183 Club, 7 Flowers, Typhoon, Taiji, LALA, VJ and Cyndi Wang. R&B and K-One used to be part of J-Star too. Some of the original R&B members left Jungiery while remaining members were re-grouped with other Jungiery trainees into bubblegum-pop group LALA. And K-One is now back to Wingman Entertainment.

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5566 is the main pillar of J-Star.

J-Star have their own magazine, with the same name, J-Star.

In 2006 they formed a baseball team to play against Playboy (Korea) and Japan.

The main manager Sun De Rong (also known as Sun Zhong) first created 5566 (21 January 2002). Alongside with them, there are individuals like Ming Dao, Qiao En, Cyndi Wang, Hong Qiao. Almost 2 years later R&B was born (was disbanded in 2006). From then on, with all the success they have, they started to create more and more groups, like 7 Flowers, 183 Club. The individuals are put into groups as well. Sun Zhong took K-One over his side. And Toro moved to Jungiery after he quit Energy and now in a group called Typhoon.

In 2007 they got some step back.