The artist who would one day be known as Dusty Springfield began her professional singing career in a girl group called the Lana Sisters, with which she recorded just a handful of albums and found only moderate success, via AllMusic. At that point, she adopted the stage name “Shan,” the first of two stage names she would have in her career. A few short years later, the Lana Sisters had folded and the singer was in need of a new project. At this point, she turned to her brother, Dion, who was also a musician, to form her next group.
It was also at this time that she adopted the Dusty Springfield moniker, and that name is related to what that new group she formed with her brother was called. The group that the artist who would one day be called Dusty Springfield formed with her brother, Dion, was a trio called The Springfields. For this reason, all the members adopted the Springfield surname, with new first names as well. Dusty Springfield’s brother Dion became Tom Springfield, and Dion’s sister chose the name with which she’d become famous, according to Biography.