" Lady Day" was a nickname given to the legendary musician Billie Holliday.
 
This name was then celebrated by Gill Scott Heron in his song " Lady Day and John Coltrane" in 1972. 
 
Traditionally Lady Day is the name of the Feast of the Annunciation that commemorates the visit of the archangel Gabriel to the Virgin Mary, during which he informed her that she would be the mother of Jesus Christ.
 
Lady Day embossed silver disc sways from a delicate silver chain.