In short…the story goes like ….Salome is the daughter of Herod and Herodias, who falls in love with John the Baptist. John the Baptist does not love Salome and she gets upset, “can’t blame her at al”l. So, she goes to her father, and asks for the head of John the Baptist on a platter “off with his head papa”.
Herod is in love with his own daughter “bizzare I know” but of course, she does not love him in that fashion. Fa inorder to enforce her papa to get John’s head she danced as in “seduced” him, Hence, Salome dances for Herod.