Brad Pitt's hair has been through a lot.

From tousled beachy locks to a matching platinum 'do with Gwyneth Paltrow, it seems that there's little his hair hasn't gone through (perhaps just shy a bangs phase). Now, Pitt has entered a new mane love affair.

Last night, the Once Upon a Time in... Hollywood actor was photographed leaving a Beverly Hills office building with his dirty-blond hair (hardly long enough, it should be noted, to even reach the nape of his neck) pulled back into a tiny ponytail. I'm talking tiny tiny. Like, I've seen newborn babies' fists bigger than this.