noun
backing band; backup band
Wasei-eigo from English 'back band'; refers to the band that accompanies a singer or main performer.
wasei-eigo (Japanese-coined English), from back band
彼女は有名な歌手で、いつもバックバンドを連れてツアーをしている。
She is a famous singer and always tours with a backing band.
その
At that concert, the backing band's performance was wonderful.