Adrian Grenier / . 1 / 7
Adrian Grenier / . 1 / 7

Say goodbye to Adrian Grenier's signature shaggy hair!

The Entourage star posted time-lapse videos to social media on Tuesday that show him getting a serious summer trim down.

The actor didn't cut it all off, but went seriously short, buzzing the sides of his head and leaving a bit on top, a la Brad Pitt in Fury.

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"Change, it happens," Grenier captioned the videos.

The cut also likely marks the end of an era for Grenier, who said goodbye to his mop-topped movie star character Vincent Chase in this summer's Entourage movie.

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