Celebrity hair trends: Meghan Markle's messy bun and more effortless 'bed head' styles

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Forget perfectly smooth, coiffed locks without a hair out of place – the latest celebrity hair trend (thankfully!) is an effortless look epitomized by Meghan Markle's 'messy bun' sported at an official royal visit to Wales. The 1990s 'bed head' hairstyle has gotten a whole new vibe, thanks to stars on the red carpet embracing the walk on the wild side when it comes to their tresses. From beachy waves to 'I woke up like this' top knots, scroll through to get some inspiration for the season's most carefree style. As 2018 kicked off, Meghan Markle got our attention by taking a break from the typical uber-polished hairstyles we've come to expect from royals as she stepped out for a royal engagement in Wales with Prince Harry. The former Suits star's upswept do was simple but stylish – making it an instant trend to follow for fans and fashionistas alike. Photo: Getty Images

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Dakota Johnson wore a casual updo with wispy side bangs at the press conference for 50 Shades Freed in Hollywood in January 2018. Photo: Getty Images

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We loved Quanitco star Priyanka's choppy waves – a nod to the 'bed head' that went perfectly with her pajama-inspired ensemble! The star rocked the fun look at the Clive Davis and Recording Academy Pre-GRAMMY Gala in January 2018. Photo: Lester Cohen/Getty Images for NARAS

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Dakota Fanning opted out of a severe, slicked back ballerina bun, instead going for a sweet, youthful look at the 24th Annual Screen Actors Guild Awards in L.A. in January 2018. Photo: Steve Granitz/WireImage

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Camilla Cabello is one of the hottest stars around – and she's also working the hottest hairstyle! The singer demonstrated she's a fan of the messy bun at MTV TRL in January 2018 in NYC. Photo: MTV/TRL/Getty Images

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This is Us star Mandy Moore wore this sweet half updo to the Create & Cultivate 100 event in January 2018 in Culver City, California. Photo: Alison Buck/Getty Images for Create & Cultivate and Chevrolet

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Cardi B took her 1960s bouffant style to another level with a teased up look with loose tendrils framing her face. The Finesse rapper sported the look at the 2018 Grammy Awards. Photo: Getty Images

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Gigi Hadid is the queen of the off duty model top knot! The cover girl wore this easy-going messy bun while out and about in Manhattan on January 11. Photo: Robert Kamau/GC Images

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Molly Sims showed us a great way to show off statement earrings! The star wore her blonde tresses in an upswept messy top knot at the 2018 SAG Awards. Photo: Getty Images