Actress Megan Fox has undergone a massive hair transformation ... But now the American actress has decided to go back to her roots - literally - and sport brunette hair once again, reports ...

Megan Fox, 36 ... were parted down the middle and hit to the middle of her back. She even made sure that her glam makeup matched her hair, as her bold lipstick was also a crimson red.

“Megan Fox has been at the forefront of every hair trend, both cut and color wise ... it’s no surprise short cuts are back in ...

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