all answers are related to people or animals associated with dance. help please
no 12 he played no 6 of 7 (5,4)
no 30 youngest sister in a fairy story with its feet halfway off the ground (4,6)
no 44 warner bros won her on the flip of a coin (6,7, "6" 8)
no 54 an uncredited choreography for Elvis Presley in 1957s jailhouse rock (4,7)