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She really does play the middle child perfectly lol

No wonder she is nicknamed MoonBully... 😂

The fact that this 🐹 hamster survived all the way until today....

i mean byulie is just everywhere!! trolling and annoying the members WHEREVER and WHENEVER she wants omfg

Byulyi is just being cute... Haha to us... Not the group haha but she's adorable!!!

Imagine being in their late seventies and still being bullied by Moonbyul🥲🤣

Only byul can annoy them like that and live

😹 byuli unnie loves to tease her members ❤️

You might also make a reversed video, YongWheeSa annoying Byul.. such rare moments, though

Byul-yi is a damn trip!!😂She is a pain in the ass, but, she is their, lovable pain!!! There is always, at least, one sister, that is the jokester, annoying, chaotic, and caring. They are and always will be a family of Four Sisters. 👩‍👩‍👧‍👧

Wow solar isn't easy to just push over, she most likely going to nock you in a straight line of what did I just try to do😂

Solar relax I'm a trained professional masseuse, let try and work the stress out with a few karate chops 😂

Byuli better be careful because Yongsun is getting very fit from all the most recent pictures and videos I've seen. She can even hold other members up by her arms! Moonstar hasn't crossed that river yet, but she's got to be in up to at least her waist now! I'm going to treat this video as a birthday present from MOOMOO ONCE, so thanks for making me laugh today!

Moonbully here we go HAHAHAH byul noona is annoying the other while Being cute 😉

i cant imagine trainee days when solar and moonbyul were throwing cereal at each other

3:12 I need a gif of that lol

I knew Moonbyul was a troll to her own members, I did NOT know that she was a friggin' bully to her own members...

Hahaha, we all know that she use any opportunity to annoy each of your unnies 😂❤️

1:08 Battle starts . Hamster attacks first 1:10 Our Yongkong attacks 😂😂 I don't how the hamster has survived after all this 😂😂. Stay happy and healthy - with lots of love fellow moomoo 💕💕

2:36 Damn ... That sounds like a old malfunctioning radio 😂. Stay happy and healthy - with lots of love fellow moomoo 💕💕

MoonByully living the life ☝🏻😌🤩 That I want 🙋🏻‍♀️ 😂🤣😂 Char

Literally my BIAS😎

Solar has so much patience.. 🤣

I love that fact that yongkong is ready to attack whenever byulkong attacks 😂😂. Stay happy and healthy - with lots of love fellow moomoo 💕💕

other groups : We are too professional on stage that we keep dancing and singing regardless any thing happened mamamoo : 2:25

Troll byulyi is so fun🤭

U know something’s wrong if Byul is not annoying at least one of the members

We love our Moonsquito

I think our Moonstar is the strength and the glue that binds Mamamoo together.

First😍i love your videos❤thanks for making me smile everyday🥰

OMG that slipper witnessbon soo many MV and photoshoot. 3:55

I would love to see a video of moonbyul being nice especially to Solar, for 11 minutes

😂she’s gotta be careful now this hamster gon get super smudged by youngwheesa one day

HAHAH I LOVE HER

I love moon bully so muchhh🥺❤️

Moonbyul look actors and model

The fact that I’m a Moomoo and Once and this channel’s profile picture is killing me 🙈

First comment, Have a wonderful day ❤️

Pang 1k like mo ako mare☺️

hi, i came again hahaha. school not yet started 😎

Byul is just playful

good morning 😊

She is the one that will be missed if she stop doing that

😂

also god she’s so annoying but that’s why we moomoos love her AHHA

Jajahajhajhajajaja

Guyz pls vote mamamoo on idol champ..

Byuli is literally that annoying guy in class you just want to slap but also don't mind making out with