Listen to Trễ Hẹn online. Trễ Hẹn is a Vietnamese language song and is sung by Hung Cuong and Mai Le Huyen. Trễ Hẹn, from the album Hùng Cường & Mai Lệ Huyền Bất Hủ 4-1, was released in the year 2001. The duration of the song is 3:19. Download Vietnamese songs online from JioSaavn.