FemaleIcon AustralianIcon
Alevtina Subba (born 21st July 1998) is an Australian youtuber known as Justt Ally. She is best known for analyzing K-Pop music videos through her Theory Thursday series. She became popular after she posted her first Theory Thursday video [Theory Thursday: JIN IS DEAD - BTS Run + Prologue + I Need U Theory /Explanation 1] which analyzed three [BTS (방탄소년단) 1] music videos. After this video Alevtina decided to create more videos like this and call the series Theory Thursday.

Alevtina nowmakes Theory Thursday videos which is analyze multiple K-Pop artist's videos.


After posting a video explaining three music videos by the K-Pop band BTS, the video got lots of views. Alevtina then decided to create more videos explaining K-Pop music videos and named the series Theory Thursday. Alevtina revealed in her introduction video to the series which was created after the first video was released that she nearly took down the first video because she thought no one would like it.

The videos are made in a movie trailer like style where she uses title slides and music to explain the story lines of the music videos.

The videos are become so popular within the K-Pop YouTube community that she now has people who created reaction videos to her theories because of how mind-blowing they are known to be.

Explanation (Justt Ally) - Reaction!13:54

Explanation (Justt Ally) - Reaction!

SW REACTION ▶ BTS FIRE THEORIES 🔥😮丨What is your theory??丨21:52

SW REACTION ▶ BTS FIRE THEORIES 🔥😮丨What is your theory??丨

A lot of her subscribers believe her videos seem to be so professional and accurate that the number one joke in her comment sections is that she works for the companies which produce the musics videos. ]

Personal life

Alevtina explained in a 25 facts about me video that she was born on the 21st of July 1998 in Sydney, Australia. She now live in Brisbane, Australia. She lives at home and is  full time university student. Her nationality is half Russian and Half Nepali.

most popular videos so far

Alevtina is most known for her BTS theories.











Explanation (Jin might be alive)10:47

Explanation (Jin might be alive)



popular quotes

At the end of her theory for BTS' Young Forever, the video ended with a quote she is made up.

"Good moments and bad moments make you stronger, making all moments the most beautiful moments in life."

Language translations

Here is a list of the languages her videos have been translated into so far:

  • Spanish
  • Spanish (Latin American)
  • Portuguese
  • Portuguese (Brazil)
  • French
  • Italian
  • Turkish
  • German
  • Dutch
  • Swedish
  • Polish
  • Russian
  • Slovak
  • Finnish
  • Greek
  • Romanian
  • Hungarian
  • Korean
  • Japanese
  • Vietnamese
  • Filipino
  • Indonesian
  • Albanian
  • Serbian
  • Chinese: but were uploaded to other websites.
  • Arabic: but where uploaded to another YouTube channel.

(written by Sarah Wittle)

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Cite error: <ref> tags exist for a group named "BTS (방탄소년단)", but no corresponding <references group="BTS (방탄소년단)"/> tag was found.

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