Watch: Hailey Bieber Reveals Chic Hair TransformationRachel Brosnahan is going back to blonde. The Emmy winner-who has sported darker locks in recent years-was nearly unrecognizable while filming an upcoming project called Slingshot in Los Angeles Jan. 7 following a recent hair transformation. Rachel was all smiles on set as she rocked newly-dyed honey brown locks worn down in loose waves while wearing a long black rain coat paired with burgundy joggers and UGGs. While the new 'do may have fans turning their heads, the Superman actress previously revealed that blonde is her natural hair color.