Flirty waves and unforgiving texture: These hair trends have been hot commodities for clients over the past few years, as clients often request to copy-cat Hollywood glam looks they've seen on their favorite celebs on the red carpet. But at this year's spring Fashion Week, the newest phase of texture that is sure to be a big hit in the upcoming season is already making waves on the red carpet.

Low-maintenance, undone texture and waves popped up on many runways throughout Fashion Week, and celebrities have taken to this "dirty waves" trend in full force. As opposed to the beachy waves that are often popular in warmer seasons, these "bedhead waves" are even more natural-looking and unpolished--and seriously desirable for the low-maintenance client.

Suggest using a small amount of product throughout volumized, blown-out hair before adding a few loose curls with a clipless wand, then lightly brushing these out and backcombing a few strands at random to achieve this look at home. For some inspiration, here are a few of the celebrities embracing the trend.

Keri Russell

Keri's waves are incredibly understated--and that's the point. Go for a "second-day hair" look that can be emphasized even further with a spritz of dry shampoo or powder.

Ashley Tisdale

Just a touch of body and unwinding curls can sex up a red carpet look that isn't too overwhelming for an everyday or evening look for a client.

Khloe Kardashian

Don't rule out mega-volume with these undone waves! Khloe's voluminous mane represents the "bedhead" part of the "bedhead waves" look.

Miranda Cosgrove

Not too different from the look you'd achieve from sleeping on wet braids overnight, Miranda's look is a bit more polished but still a stunner.