If you've ever had an undercut, spontaneous bob or a Natalie Portman-inspired pixie crop and instantly regretted it, you'll know how painstakingly tiresome it is to try and grow it out.

For some reason, it's as if your hair refuses to grow in spite. Curse you hair!

But, we finally think we have the solution – Matt Damon.

In the past month, the Ocean's Eleven actor has gone from having a short back and sides to full-scale man bun.

Yup, a man bun.

Matt Damon and Alicia Vikander | ELLE UKpinterest
Getty Images

Now, unless this is a wig, we're convinced this is actual proof of magic.

Last month, the actor was seen sporting a cute short cut you might see on a boy on the first day back at school, during the press tour for his recent film, Jason Bourne.

Matt Damon at press conference | ELLE UKpinterest
Getty Images

Fast forward to yesterday and the actor has a thick mane of hair tied back in a hipster bun.

Matt Damon hair | ELLE UKpinterest
Getty Images

But, this isn't the first time we've seen Damon with luscious long locks. Last year, the We Bought A Zoo actor showed of a similar length ponytail which turned out to be for role in the upcoming film The Great Wall.

However, we know that Rapunzel-esque hair wasn't au naturel, rather the result of 700 hair extensions.

We're not quite sure why or how Damon now has long hair but its giving us some serious hair envy.

Damon, share your secret. 

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Katie O'Malley
Site Director

Katie O'Malley is the Site Director on ELLE UK. On a daily basis you’ll find Katie managing all digital workflow, editing site, video and newsletter content, liaising with commercial and sales teams on new partnerships and deals (eg Nike, Tiffany & Co., Cartier etc), implementing new digital strategies and compiling in-depth data traffic, SEO and ecomm reports. In addition to appearing on the radio and on TV, as well as interviewing everyone from Oprah Winfrey to Rishi Sunak PM, Katie enjoys writing about lifestyle, culture, wellness, fitness, fashion, and more.