show‧girl /ˈʃəʊɡɜːl $ ˈʃoʊɡɜːrl/
noun [countable] one of a group of women who sing or dance in a musical show
[TahlilGaran] Dictionary of Contemporary English ▲
showgirl n. One who works as an entertainer in a bar or nightclub, musical show, etc.
Several famous Hollywood stars actually started their careers as showgirls. [TahlilGaran] English Idioms Dictionary ▲