noun
backup dancer; background dancer
Wasei-eigo from English 'back dancer'. Refers to a dancer who performs behind the main artist, often in pop music performances.
wasei-eigo (Japanese-coined English), from back dancer
彼女は有名な歌手のバックダンサーをしている。
She works as a backup dancer for a famous singer.
バックダンサーのオーディションを受ける。
I'm auditioning for a backup dancer position.