1958. The caption in the December 22 issue of LIFE magazine reads:
This is Marlene Dietrich in the role that made her famous – the cabaret singer of The Blue Angel in 1930, the husky-voiced temptress with her fatalistic song, Falling in Love Again. Marlene’s divine legs and glamor seem to endure forever. She can still make $30,000 a week singing at Las Vegas.