Gone Girl star Rosamund Pike shocked fans when she stepped onto the red carpet last month sporting an edgy new undercut.
And she's not the only star to show off the daring 'do – pop princess Rita Ora is currently championing the look.
But shaving your head is a brave move – if you don't want to commit, you can fake the look using these top tips from Marc Trinder, Art Team Director at Charles Worthington Salons.
Step 1: Prep hair with Charles Worthington Salon at Home Volume & Bounc e Body Booster Mousse (£5.99) and blowdry smooth.
Step 2: Take a section of hair from the underneath and braid from ear to ear pinning in a circular motion to reduce thickness .
Step 3: Grab vertical sections and twisting the mid lengths, apply gentle heat to each twist while keeping the ends straight.
Step 4: Spray Charles Worthington Salon at Home Shine Booster All Over Gloss Spray (£5.99) into fingertips and then massage into roots.
Step 5: With your fingers, pull the hair back and let it fall forward into a natural side parting just over one eye.
Step 6: Tuck behind the ear or use a pin to hold in place allowing strands to come forward.
Step 7: Finish with a little Charles Worthington Salon at Home Straight & Smooth Serum (£5.99) warmed in the hands and work through the ends to separate.