YG Entertainment is now making its move to delete all the videos that contained the mysterious song that Jeon So Mi accidentally leaked online. Does this just prove that the unknown is music is for BLACKPINK's after summer comeback?

Many believe so and they are now worrying for Jeon So Mi after she held a live broadcast on Instagram and toured fans at the YG Black Label studio. However, as she opened one of the rooms, a new sound blasted out and a voice of a woman, who many believed to be Jenny from BLACKPINK, came out.

Fans started to theorize that it was a new song for the girl group. Though that scene lasted only three seconds, it was enough to go viral.

Jeon So Mi herself even looked very nervous when she accidentally leaked the song, telling her fans, "This could have been really bad." As expected, it turned for the worse as netizens quickly shared the tune on social media and it spread like wildfire.

So to avoid further damage, AllKpop noted YG is now deleting a number of YouTube videos containing the leak tune and reporting various social media posts. For starters, it has been said that BLACKPINK is now gearing up for their much-awaited comeback this year.

In fact, an investment researcher seemed to confirm Jisoo, Jennie, Rosé and Lisa's return after the summer. The expert even revealed they were originally set to make a comeback in the fourth quarter of 2021, but it was delayed until they could do a global tour.

Meanwhile, while the exact date of the "How You Like That" hitmaker's return is yet to be confirmed, it looks like the girls are busy doing other projects. They would be releasing a textbook to teach netizens the Korean language, titled "BLACKPINK in Your Korean."

This project would be under a collaboration with HYBE, which is known for being the home of BTS, TXT and ENHYPEN. The textbook will be part of a package that contains another learning book, a pocketbook and other items.

Each product has an embedded HYBE x YG Entertainment at the bottom, showing the work between the two music label giants. Koreaboo revealed that though it looks odd, this project is only fitting, knowing HYBE has created others like this before.

To recall, BTS also released their own textbook that taught the Korean language. It was titled "Talk! With BTS," "Learn! Korean with BTS" and "Learn! Korean with TinyTan." Now, it is time for BLACKPINK to do the same.