If you've managed to avoid the app phenomenon TikTok during this lockdown you've probably issued a self enforced social media ban (and to that, we salute you).

For the rest of the world who have fallen for the app's addictive powers, TikTok has become a proper comfort blanket of choreographed dances and lip-syncing. Who doesn't want to watch a carefully synchronised clip of an adorable cat dancing to 'Mr Sandman' by The Chordettes?

But beyond the indisputable likes of Mr Sandman Cat or Kombucha Girl, hacks have become a staple on the video sharing app, with genius beauty discoveries like this trick to getting beach waves using a dressing gown belt.

And it turns out the TikTok universe and it's crafty content creators are showing up for fashion obsessives too. No we're not talking about this hilarious, but maybe not so handy, trick for turning a balloon into a shoe. There's also a lot of useful tips when it comes to styling as well as fixing and updating your wardrobe. Helping us save money and the planet too, wahoo!

This style hack from user @christaallen has to be one of our favourites. Purely for the fact that it requires literally zero effort and manages to give a classic wardrobe item an instant summer refresh.

Want to know how to turn an old T- shirt into a vest top? Are you also partial to wearing bra? Perfect, then you're done.

Everyone's clicking on...

We love how little there is you need to make this work and the fact that it's guaranteed to stay all day. No cutting up your fave tees or careful sewing skills required. Christa simply pulls down the straps of her bra to the side of her arms and then when pulling the straps back up onto her shoulders she also rolls the T -shirt sleeves with it.

Simple yes, but effective. And fans of Christa's account definitely agree, with the video already racking up over 92,000 views and 6,000 comments:

Genius! Why didn't I think of this 🤔
Oh this is so useful! Thank you!
WHERE HAS THIS BEEN ALL MY LIFE
IS THAT HOW PEOPLE DO IT 😮 I’ve always wondered why it didn’t work for me lol

But some commenters on the video seem to be a little distracted, maybe due to the fact they've noticed the familiar face behind this quick and simple style hack.

Christa Allen is in fact the actress who you may remember as young Jenna Rink from 13 Going on 30. AKA Jennifer Garner's mini me.

Christa also played the character Charlotte Grayson on TV drama Revenge. She takes these shock comparisons from excited fans on the app very well though, posting videos referencing her former roles.

We have to admit, we were just as excited to discover that our new style hacks were being delivered by the (not quite yet) 30, flirty and thriving Jenna Rink.

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Lettermark

Sophie Leen is the Bookings Editor for Cosmopolitan UK and Women's Health UK. She specialises in creating fashion and shopping content across both digital and print platforms, as well as producing all of our fashion editorial photoshoots, which have included our digital cover with Olly Alexander and our curve influencer’s letter to the high street story. Sophie also looks after our Try Before You Train franchise where our team have tested and reviewed over 100 gymwear items.