EXCLUSIVE: Cara Delevingne chops her hair right before Comic-Con Panel, dishes on impulsive fresh cut -- see her new look!

EXCLUSIVE: Cara Delevingne Debuts 'Chopped' Hair at Comic-Con

Sometimes the excitement of Comic-Con can make a girl want to chop her hair off -- just ask Cara Delevingne!

Fourty-five minutes before the panel for her new film, Valerian and the City of a Thousand Planets, the 23-year-old actress decided it was time for a fresh cut, right there and then.

WATCH: Cara Delevingne Shows Off Pink Hair at Girlfriend's Concert in Montreal

The former model teased her followers on Instagram with a shot of her golden locks on the floor of her hotel room.

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And just before the panel, Delevingne stepped out rocking a cute shoulder-length cut.

ET's Ashley Crossan got a chance to catch up with the actress and Valerian co-star Dane DeHaan pre-panel, where they dished on her new look.

"I did it," DeHaan joked, after Delevingne revealed she went for the big chop this morning.

"I cut his hair too. We do each other's," she added.

And while the Paper Towns star cut a few inches off, she knows it's not enough to roam around the convention floor undetected. "[I'll be] wearing a Where's Waldo outfit," she confessed. "That's what I'm going to wear."

Valerian and the City of a Thousand Planets is set to release July 17, 2017.

WATCH: Batman Makes His First Cameo in New 'Suicide Squad' Trailer

Coming up, you can see Delevingne as Enchantress in Suicide Squad, in theaters on Aug. 5.

See images of Cara Delevingne:

Cara Delevingne through the years
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Cara Delevingne through the years
Cara Delevingne attends the 'Remember Me' film premiere at the Odeon Leicester Square on March 17, 2010 in London, England. (Photo by Jon Furniss/WireImage)
LONDON, UNITED KINGDOM - NOVEMBER 25: Cara Delevingne attends the first anniversary of Alice By Temperley at Paradise by Way of Kensal Green on November 25, 2010 in London, England. (Photo by Nick Harvey/WireImage)
LONDON, ENGLAND - NOVEMBER 29: Models Poppy Delevingne (R) and sister Cara Delevingne attend the 'Sex And The City 2' DVD Launch Party at the Swarovski Crystallized Lounge on November 29, 2010 in London, England. (Photo by Jon Furniss/WireImage)
LONDON, ENGLAND - JUNE 28: Cara Delevingne attends the summer party at The Serpentine Gallery on June 28, 2011 in London, England. (Photo by Mike Marsland/WireImage)
LONDON, ENGLAND - NOVEMBER 21: Cara Delevingne attends Tiffany & Co. Presents Skate at Somerset House on November 21, 2011 in London, England. (Photo by Nick Harvey/WireImage)
NEW YORK, NY - NOVEMBER 07: VS model Cara Delevingne walks the runway during the 2012 Victoria's Secret Fashion Show at the Lexington Avenue Armory on November 7, 2012 in New York City. (Photo by Randy Brooke/WireImage)
LONDON, ENGLAND - FEBRUARY 16: Cara Delevingne walks the runway at the Issa London show during London Fashion Week Fall/Winter 2013/14 at Somerset House on February 16, 2013 in London, England. (Photo by Mike Marsland/WireImage)
Cara Delevingne arriving for the Burberry Prorsum womenswear catwalk show at Kensington Gardens, as part of London Fashion Week.
Cara Delevingne arriving at the 2015 MTV Movie Awards, Nokia Live, Los Angeles.
Cara Delevingne arrives for the presentation of the Burberry collection during London Fashion Week Spring/Summer 2017 in London, Britain, September 19, 2016. REUTERS/Luke MacGregor
Cara Delevingne poses for photographers at the Chanel "Mademoiselle Prive" exhibition, in London, Britain, October 12, 2015. REUTERS/Peter Nicholls
NEW YORK, NY - AUGUST 01: Actress Cara Delevingne attends the world premiere of 'Suicide Squad' at The Beacon Theatre on August 1, 2016 in New York City. (Photo by Noam Galai/Getty Images)

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