Joan Sebastian's birth name is Jos Manuel Figueroa Figueroa.
Joan Winfield's birth name is Joan MacGillicuddy.
Joan Jett's birth name is Joan Marie Larkin.
Joan Oller's birth name is Joan Oller i Cuartero.
Joan Severance's birth name is Joan Marie Severance.
Joan Tetzel's birth name is Tetzel, Joan Margaret.
Sebastian Engstroem's birth name is Sebastian Amadeus Engstroem.
Sebastian Fehrs's birth name is Sebastian Martin Fehrs.
Sebastian Luedke's birth name is Sebastian Ldke.
Sebastian Buttny's birth name is Sebastian Butny.
Joan Ciccone's birth name is Joan Gustafson.
Sebastian Bengtsson's birth name is Bo Sebastian Bengtsson.
Bill Sebastian's birth name is William Glenn Sebastian.
Dave Sebastian's birth name is David Alfred Sebastian.
Guy Sebastian's birth name is Guy Theodore Sebastian.
Sebastian Stoppe's birth name is Sebastian Kornelius Stoppe.
Sebastian Mascall's birth name is Sebastian Askvik Mascall.
Sebastian Faulks's birth name is Sebastian Charles Faulks.