You forgot Ateez had dance break in between in Inception too lol. Also, this is a trilingual song. Fun fact: Sota was once a back dancer for Ateez for Hala Hala, now he's doing a collab with them😭

Sky-Hi, credited at the end, is a Japanese rapper, songwriter, and producer. He's responsible for all the lyric translation for Edenary, and he does a lot of writing for BE:FIRST.

This is what we call a collab because both groups shine

Best collab I've ever heard between 2 groups! Be:First and Ateez killed this!

"Shout out to my short hair king!" YAAASS!! Say it LOUDER for people in the back that's our MIYAMA RYOKI!!

Idk anything abt BE:FIRST but since this mv dropped, I've got great recommendations from Bestys in the comment section and wow these guys are great performers, mad mad live vocals too

Yall dnt understand how much i love this song 😭 #1 streamer on spotify stats

befirst🇯🇵ファンです。 リアクションありがとうございます。 befirstの 「mainstream」 「masterplan」 リアクション🙇‍♀️お願いします

Yess bro they atee and left no crumbs best collab of the year

From what I searched today Be:First is a japanesse group, they are under B-ME wich is connected in a way to AVEX (the company behind Xgalx that formed XG) and when I saw this I was ok i'm done with my research, they are great, I'ma go watch their old stuff and became a fan today, crazy right?

Be First is a Japanese group who formed and debuted when they won a reality music competition in 2021.

Ateez and BE:FIRST energy match so well… THAT DANCE BREAK?! I need more of this collab

Befirst are under BMSG a japanese label, this a Japanese release.. Sky-hi (a Japanese rapper and singer, who was part of a Jpop group years ago) is the CEO of the company. and he also writes and produces the songs for BeFirst, like this one for example.

I was not ready for this. Hush Hush! This was my introduction to Be:First. I can tell you that I've already put a few songs on my playlist.

BE FIRSTのファンです。リアクションとても嬉しいです☺️是非mainstreamも見てリアクションお願いします

Reactionありがとうございます！！BE:FIRSTもぜひチェックお願いしますfrom Japan

This has to be one of the best collaborations of the year! It is so good! I get goosebumps ever time I hear it and I’ve heard it on repeat since the release!

i love BE:FIRST and ATEEZ so much 😭😭

Hush Hushへのリアクションありがとうございます😊 あなたの、BE:FIRSTメンバーの名前の発音がとても上手でビックリしました！

As Bestiny, yes, I love seeing my favorite jpop group and ATEEZ COLLAB

Stylists deserve a raise cause they all look FIIIINNNEEEEEEEE in those fits

this collab was out of the blue but it was fire and the visuals of the music video was crazy

BEFIRSTのりあくしょんありがとうございます！ 驚きのコラボ、一緒に楽しませていただきました♪BEFIRSTの他の曲も是非楽しんでみてください♪

While I was watching this music video, I was eating ice cream and I dropped it because MV was so good

I guess this is collab are from their company, BMSG WITH KQ JAPAN. BMSG BE:FIRST company SKY-HI comp, is very big in japan. They produced many rappers and also jpop group in that comp. ATEEZ and BE:FIRST start knowing each other at D.U.N.K where ATEEZ been invited to this large-scale music project jointly produced by SKY-HI

Considering that Befirst are one of my favorite Jpop boy groups next to Nexz and lil league and Ateez are one of my ults, you can only image how happy I was to see this😭 (Also Befirst are under BMSG, not KQ Japan)

im so obsessed with this song ngl !

reaction(⁠≧⁠▽⁠≦⁠)ありがとうございます❤️Thank you so much🎶🕺✨BE:FERST×ATEEZコラボ最高⤴⤴🎉Sky-Hi💕BMSG✨

Hello🎉 thank you🎉 reaction

リアクションありがとうございます! 是非BEFIRSTの 『BoomBoomBuck』 『MainStream』 『MasterPlan』 を聴いて下さい🙏

Thank you for your reaction. I hope you will take this opportunity to listen to BE:FIRST songs. It was a fun reaction.

I really liked your reaction Thank you.

リアクション嬉しいです☺️🇯🇵

reactionありがとう🙏✨✨🇯🇵 是非BE:FIRSTのMainstreamもreactionして下さい☺️

I suggest you look into Be:First. They are very good.

ビーファーストのmaster planやnew chapterが和を感じられる曲なので、おすすめします😊 リアクションありがとうございました😊 コラボしていただいたエーティーズさんも素敵ですね✨

素晴らしいリアクションをありがとうございます！！！

This was awesome and the outfits are so good, they way both groups fit seamlessly was great. Also I'm so happy with how many lines Wooyoung got in this that really showed off his underated vocals.

This was so freaking cool!!!! And Yunwoo absolutely ATE!!!!! Love that for them!!! 😃❤❤❤ I wasn’t familiar with BE:FIRST before this but consider me a BeTiny!!! 😂❤❤

i think the KQ Japan team is just to manage their relations/promotions in Japan since they are gaining popularity and looking to grow even more in that market. Other atiny have pointed out the ties between BE:FIRST and ATEEZ but this collaboration is something I didn't know I needed but I'm obsessed.

Thank you for your reaction💕I’m enjoying your reaction ❤️ The first person to say ”BE:FIRST “is Sota.Sota’s dance is crazy. Sota has won the world dance competition four times. The collaboration between BE: FIRST and ATEEZ is amazing. This collaboration started when ATEEZ appeared at "D.U.N.K.Showcase in KYOCERA DOME OSAKA" by SKY-HI, the CEO of the company :BMSG that BE:FIRST is belong . So Mingi and Hongoong performed rap collaboration songs with other groups ‘s rappers (including SKY-HI of CEO and rappers ,and BE:FIRST's Ryouki). I went to that live show: D.U.N.K.Showcase, and it was so cool. I also participated in the BEAT AX Vol.4 event at Makuhari Messe in Japan on June 28. ATEEZ appeared for the last time. I was overwhelmed by them. Their performance was wonderful. It has been a long-standing dream of SKY-HI to interact like this beyond the boundaries of the group. I think it is might borders and genre barriers that ATEEZ is breaking in the video of this MV. " We don't need shields and spears. “ I guessed as if he was saying, "Just enjoy the music." K-pop and J-pop are also losing barriers, so SKY-HI used to say that if he dare to classify it, he ‘ll call it A (Asian)-pop . You can watch D.U.N.K.'s rap collaboration video on the D.U.N.K. channel.↓ “#7 (D.U.N.K.) SKY-HI Rap collaboration” You can also watch a part of ATEEZ's live performance and other groups‘s collaborations on the D.U.N.K. channel. Please check Masterplan,Mainstream of BE:FIRST,too.Their Live performances are also amazing ✨ From Japan ❤️🇯🇵

I love that it was a true collaboration of the two groups.

This was awesome fr ❤

Its a trilingual song❤

This was great!! Love the part where Hongjoong breaks that glass floor! Such a cool visual!!

Thank you for the reaction of BE:FIRST & ATEEZ ♪ I hope you will continue to enjoy ATEEZ & BE:FIRST's music together.❤😊🇯🇵

You must see BE:FIRST - Mainstream MV. It's FIRE!!!

Huge Atiny here- many of us have never heard of B: First, but we are here for this!

Just looked it up seems that BE:first isn’t under KQ Japan

Thanks for the response ♡. Both are very nice! Keep an eye out for BE:FIRST! And listen to the other songs ♡. I guarantee you will enjoy them!😊😊

When Mingi came in I was like “HOLY MOLY I FORGOT YOU EXISTED FOR A SECOND!?”

リアクションありがとうございます😊

Thank you for the reaction! BEFIRST Masterplan ＆ MainStream MV MilliBilli DANCE performance Please take action ❤ ATEEZ Thank you 🩷

We only got a couple days warning it was coming and HOLY HELL ITS GOOD

Turn you on hush hush I'm obsessed 😭😭

ありがとうございます🤗💙❤BESTY

no this collab really insane, i really love it Sebastian, have you seen the latest Ateez Japanese MV-release? It's called Not okay

リアクションありがとうございます。 BE:FIRSTのファンです。 ATEEZとの最高のコラボです。 よかったらBE:FIRSTの他の曲もチェックしてみてください。 よろしくお願いします

This is FEELZ!!! Luv ur reaction!

リアクションありがとうございます🥰

😂 Mingi being off the beat threw me off too, but it was quirky enough that it somehow worked after listening to it a few times. OAN seeing BE:FIRST getting noticed by a new group of people now is great, their music is so damn good

👏🏾👏🏾👏🏾👏🏾👏🏾

i agree with you we need more of this

I'm waiting so much for a KQ girl group!

this comeback KILLLLED ME. I need to know who the guy on be:first wih the raspy voice is.. 0:53 + 2:13

ifeel like for me its one of those somgs ihave to hear a couple of times before ifully get into it

The one song where you can see a performance that BE:FIRST possesses you like ATEEZ is SCREAM!

Kgroups should do this type of collab really, imagine skz X ateez

You gotta see peppermint Yum with EPEX x FANATICS if you want another K-pop x J-pop collab

Hiiiii

1:13 ME WHEN RYOKI WENT BALD 😭😭😭

I'm second

I am firstt