Hợp ca tranh tài was a Vietnamese reality talent contest that made its debut on VTV3 in Vietnam on February 24, 2012.
The format was a multi-province "bragging rights" competition between about 15-person choirs assembled in the hometowns of the recording artists that support them.
The prize is in the form of a contribution to a charity active in the artist's hometown.
The choir led by Siu Black, Mỹ Lệ, Đức Tuấn, Khánh Linh, Nguyễn Ngọc Anh, Phương Thanh and Phan Đinh Tùng.
Each choir performed as part of a multi-choir medley format as well as songs for the finale night of the show.