A famous quartet of Taiwan, the 5566, will perform at HCM City’s Phu Tho Sports House on August 23 and Hanoi’s Quan Ngua Stadium on September 7.

The 5566 boyband was formed in 2004, with Zax Wang, Jason Hsu, Sam Wang, Rio Peng, and band leader Tony Sun, working in six entertainment fields (singing, movies and dramas, hosting, modelling, commercials, and dancing).

The band has released four albums: 1st Album, Boyfriend, Long Time No See, and Bravo; two compilation albums: C'est Si Bon Greatest Hits, I Love 56 - Re-emerging Legends: 5 Years Greatest Hits; and taken part in four OSTs: My MVP Valentine OST, Westside Story OST, Mr. Fighting OST, and Ying Ye 3 Jia 1. 5566 has released a total of eleven work pieces.

5566 not only works together as a group, but also separately. For instance, Sam Wang is famous for appearances on many TV series as well as membership in another of the company's bands called 183 Club, which effectively makes him the busiest 5566 member; Tony Sun and Zax Wang often have dramas to shoot; while Jason Hsu has been featured in many local promotional campaigns. Zax Wang and Jason Hsu are also hosts of SETTV's entertainment show. Additionally, leader Tony Sun is also known to take part in a lot of behind-the-scenes work at Jungiery.

Each of 5566's members had various degrees of success prior to the group's formation.

Tony Sun gained much solo experience by releasing several well-received albums in the Taiwanese dialect in the 1990s; he even gained the title of the "Taiwanese little champion". However, his popularity waned when he had to fulfill his mandatory military service. Sun was signed under Jungiery in his earlier days; he used his connection with the company to secure the second part of his career.

Zax Wang was a member of the short-lived boyband POSTM3N. After the group disbanded, he was planning to start a cellphone shop with a colleague when Sun De Rong, Jungiery's head, contacted him. Wang accepted the deal.

Sam Wang was a national soccer player and a model before signing with Jungiery.

Jason Hsu used to be obese and unpopular in school. However, he started appearing in commercials when he lost weight, giving him the looks of an idol. He was also a model. Jungiery offered him a contract, and he gladly accepted.

In their shows in Vietnam, the boyband will perform some songs from their albums with some Vietnamese pop stars such as Phuong Thanh, Dam Vinh Hung, Ho Ngoc Ha, Ha Anh Tuan, Siu Black and Minh Quan.