So pretty! Can you guess which singer-songwriter from Down Under this lovely young lady is related to?

If you caught a glimpse of this blond bombshell strolling down the street with her older brother, you might guess that she's the famous one, what with her gorgeous face and keen fashion sense. She's actually trying to make a name for herself in the entertainment biz, specifically acting and modeling. The fashionista already landed a number of modeling gigs, and she also likes to exercise her musical chops like her guitar-strummin' brother.

Have you figured out who this budding starlet is, and which famous singer she gets to call her big brother? Click through below to find out!