Justin Bieber's Pubescent Facial Hair

NEW YORK, NY - MAY 27: Justin Bieber seen walking in SoHo on May 27, 2017 in New York City. (Photo by Robert Kamau/GC Images)Robert Kamau

LOL. Nothing like a Bieber sighting where he flaunts his baby-face lip and chin growth to give you a nice chuckle. One day he'll be able to grow a beard that would make Casey Affleck proud, but, sadly, today is not the day.

Russell Westbrook's Barely-There Buzz

LOS ANGELES, CA - MAY 25: Russell Westbrook is seen on May 25, 2017 in Los Angeles, California. (Photo by gotpap/Bauer-Griffin/GC Images)gotpap/Bauer-Griffin

While we spend a lot of time thinking about the best haircut for summer — that perfect overlap of style and comfort — the fact of the matter is, if you can pull it off, the induction cut is probably your best bet. No time spent styling it and nothing to trap the heat in makes it summer's most effortless 'do.

Colin Farrell: One Haircut, Two Ways

LOS ANGELES, CA - MAY 25: Colin Farrell is seen at LAX on May 25, 2017 in Los Angeles, California. (Photo by starzfly/Bauer-Griffin/GC Images)starzfly/Bauer-Griffin

CANNES, FRANCE - MAY 24: Colin Farrell attends the Annabel's & Chopard Party during the 70th annual Cannes Film Festival at Martinez Hotel on May 24, 2017 in Cannes, France. (Photo by Chris Jackson/Getty Images)Chris Jackson

How's this for flexibility? Farrell demonstrated just how versatile the classic slicked back hairstyle can be this week, showing it with a black T-shirt (note the expertly rolled sleeves) and jeans at the airport, for a cool, rocker vibe, and then deployed the same damn 'do with a tuxedo and, guess what, it looked great in both instances. Kudos.

Orlando Bloom's Pushed-Forward 'Do

LOS ANGELES, CA - MAY 26: Orlando Bloom is seen on May 26, 2017 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)BG004/Bauer-Griffin

Bloom obviously has killer style, and that extends right on up to his grooming routine. He was spotted out in LA this week sporting the ultimate summer do for guys whose hair is too long to be a buzzcut and to short to be the Bro Flow. It's the classic comb-forward, with a slight flourish at the front. It's easy as running something waxy and with a strong hold through your hair, pushing it forward and letting it set. Bam — effortless hair is yours.

Robert Pattinson's Messy Mid-Length 'Do

Pascal Le Segretain

Dominique Charriau

As we mentioned earlier this week, Robert Pattinson debuted the perfect unruly style at Cannes this week, something that a lot of guys could rock. For guys who've let their classic high-and-tight grow out, but don't have time to get a new cut, this is for you. The point here is not to look too styled, so take a dab of pomade, run it through your hair, pull it forward and create some makeshift, spiky bangs, and embrace the unkempt, grown-out messiness. It's summer, let your hair down — literally.

Matthew Modine's Headscarf

CULVER CITY, CA - MAY 24: Actor Matthew Modine attends the Premiere Of Netflix's "Bloodline" Season 3 After Party on May 24, 2017 in Culver City, California. (Photo by Earl Gibson III/Getty Images)Earl Gibson III

As the weather heats up, those who have embraced this season's longer, freer hairstyle may wonder what, exactly, do they do with all that damn hair. Well, here's a solution: a headscarf. Everyone from Harry Styles to, well, Matthew Modine, have taken some extra fabric and used it to keep their hair out of their face. It's easy and has the right sort of laid-back summer vibes.

PSA: It's Time to Get Ready for Beach Season

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Watch Now3 Facial Hair Grooming Tips You Should KnowMax Berlinger is a freelance writer who's based in Brooklyn, NY. He has written for the New York Times, GQ, Wall Street Journal, Bloomberg, Departures, Robb Report, Town & Country, and many other publications. He's interested in the way fashion and culture overlap. He's probably killing time on Twitter right... Read moreXInstagramRelated Stories for GQRed CarpetJustin BieberBeardsHairGrooming