Those that can recall the early 2000s may still remember chain mail. These annoying letters were sent through Hotmail, DMs, and social media platforms with threatening threats of terrible consequences if they weren’t forwarded.

It may be a child ghost coming into your room at midnight to kill you, your family being killed in a horrible accident or some more plainly just missing out on good luck if  you don’t pass it on.

Gen Z TikTokers are back with chain mail. But, this time, it’s not as naughty-looking as low-rise jeans, exposed sandals and handkerchief shirts.

Rather than sending physical letters or emails – or even texts –  the latest incarnation is warning that people who don’t make a video using certain popular TikTok sounds as the audio will have back luck. 

British TikTok user Mia Wardle claimed she had a run of bad luck after failing to use the 'I'm So Lucky' sound on her video

British user Mia Wardle of TikTok claimed that she was having bad luck because she failed to use the sound ‘I’m So Lucky’ on her video. 

This clip is so popular that it has been viewed over 14,000,000 times. One user says that her boyfriend left her after she failed to use the sound ‘I’m So Lucky’. She also claims that her luck led her to catch Covid one week before Christmas.  

It is full of comments from users who talk about the phenomenon as’secondary school chains mail all over again’, with people in their twenties or older being shocked at its return.

The so-called “magical” sound (also known as “I’m so Lucky Lucky”) has been heard in more than one million videos. Many people claim that they don’t use it because it causes them trouble. 

One even claims that their mum and dad’s best friend was killed, while the house of their sister also burns down.

A third person said they experienced their worst day and had their phones stolen.

Others are positive and claim that creating videos with the sound brings them luck. This includes passing a test and getting an unexpected gift or even a proposal.

In one clip, that's racked up an incredible 14million views, one user claims that by skipping a 'I'm So Lucky' sound she was caused her unbelievable bad luck - including her boyfriend breaking up with her and catching Covid a week before Christmas.

One clip has been viewed over 14 million times. A user claimed that she avoided the ‘I’m So Lucky’ sound and that this caused her incredible bad luck. This led to her boyfriend leaving her, as well as her catching Covid one week before Christmas.

One goes as far to claim their dad and mum's best friend died, while their sister's house also burned down.

One goes as far to claim their dad and mum's best friend died, while their sister's house also burned down.

Please share this sound. One goes as far to claim their dad and mum’s best friend died, while their sister’s house also burned down (left) Another said that they had their ‘worst day ever’ and their phone stolen after skipping the sound (right) 

Millemial Twitter users have said they find the trend 'embarrassing' and accused Gen Z of bringing up the past

Millemial’s Twitter users said that the trend was ’embarrassing’ and accused Gen Z for bringing back the past 

“I’m so fortunate” is one of many viral sounds TikTok users made, and Gen Zers use it to’manifest their wishes.

Months after viral TikTok trend of ‘timeline switching’ and reality shifting’, where users were able to enter another realm, such as Hogwarts or fictional worlds, the new trend is now in fashion.

Timeline shifting was used to make people believe they were able to travel to other universes and fulfill their wishes. 

TikTok algorithm is most likely responsible for the video’s existence.  It’s placed more often if there are more interactions with it.

A clip that is seen more often and shared more widely will be more popular if it has more interaction.  

One psychologist thinks that the trend is in part cause by people struggling to get help they need and looking to platforms like TikTok for mental health support.

Speaking to Dazed,  Dr Audrey Tang said that the lack of access to mental health services means that people look to trends like TikTok chain mail to help them validate their feelings and be reassured.

‘With these videos, they don’t have to express themselves, they don’t have to be told, ‘I’m not sick enough’, they don’t have to go through any of that shame – they just need to share a video,” she explained.

Explaining the spiritual side, astrologer Hannah Siddiqui from San Francisco explained in a video: ‘If you’ve spent any time on Tiktok then you’ve probably seen at least one person talking about manifestation. 

“Manifestation is founded on the law and attraction.

“It basically means that the thoughts we focus on create our reality. Whatever it may be that we are focusing our attention on, whether good or not, manifestation will work in the four steps of asking, believing and working hard. 

How does it relate to manifestation? You probably already have at least one goal or dream in your head. 

“That’s the first step, asking. Step two, believing, and here’s where the sound comes in. 

“In order to make anything happen, you must believe it is possible, even if only a small part. This sound, which is simply repeating “I’m so fortunate” over and over again, is an affirmation that helps us believe we are truly lucky. 

“Just like our thoughts create reality, so are our thoughts. Our stories are also what create our reality. This is how sound works.

However, Dr Audrey believes the sounds that are making people believe good things are  happening in their life is a confirmation bias. 

‘When you save these videos, you’re priming the mind with what you want to happen, so you’re then going to look for it. She explained that we look for confirmation of our biases.