[Video] Rainbow perform 'A' and 'Mach' on Music Bank

7-member group Rainbow performs 'A' and 'Mach' on today's Music Bank. 'A' and 'Mach' are both catchy and lively songs with fitting dances. Although both of the concepts are different, Rainbow is still able to bring us a great live performance:




Video Credits: KoreanMusicEnt@YT