British GQ did an interview with Ten talking about the creative process of this MV. I just read it online. Ten is an amazing artist, he surely knows how to display his creativity visually.

As you may know, Ten just recently was a dance mentor and judge on a Chinese dance competition show for several months in China, which is where "Birthday" and a short version of this dance was first performed more than 6 months ago. And yes, this dance was, at least in part, choreographed by him. Ten is often the one that creates or modifies the most memorable and dynamic parts of NCT/WayV's dances that he is a part of. Therefore, it wouldn't surprise me if it was Ten who came up with or modified that tightrope jump move to create what you see in the MV. Most choreographers say they present Ten with choreography and then he changes it and makes it even better. He is a very skilled choreographer as well, which, as I think you know, he has shown off in several self-choreographed performances on NCT's KZfaq channels and as a member of SuperM, etc. (Which I think explains a little of his skill level.) And yes, "Birthday" is all in English. All of Ten's solo songs -- "Dream in a Dream," "New Heroes," "Paint Me Naked" and "Birthday" -- are in English because Ten is fluent in English. (At this point, it would be more surprising if it wasn't in English. ;D) He grew up attending an international school in Thailand run by British educators, so he spoke English in school. He is native Thai, however, he is fluent in 4 languages -- Thai, English, Korean and Mandarin (and he is currently learning Japanese). If you remember, he first debuted as an original member of NCT-U in the "7th Sense" as a main dancer and a rapper, but by virtue of the fact that he is an SM artist, it shouldn't be a surprise that he is also an outstanding vocalist. LOL. That's just what SM artists are known for. That's why SM is the vocal powerhouse of the industry because everyone under SM has superior singing abilities. Ten is the NCT member with the most solo projects because he is one of SM's and the industry's top dancers and he is an amazing singer and performer, so SM likes to showcase all his impressive skills. Ten is one of the most talented and skilled artists in Kpop. And yet, not enough people pay attention to him.

Love it when you do ANYthing NCT!! Ten and this MV are both just amazing - thanks for the reaction VERY honest reaction 😮🥰

Ten performed a bit of this song on Great Dance Crew and he promised we'd get the mv when he got back to S. Korea. He did not disappoint.

Thanks to React TEN and share to your friends 😍👍🏻

Love your reaction! He slayed us all as per usual

Ten is art Thanks

TEN is so amazing / thanks for the reaction

Thank you for reacting! WayV actually have lots of english songs among all units of NCT. Hope you can react to more WayV their music are all good. I know you have reacted to Love talk, Miracle and Bad Alive which are all english. Other English songs from WayV: Paint Me Naked - Ten Low low - Ten & Yangyang Back To You - Kun & Xiaojun

He has everyone under his spell with his mesmerizing gazes and dance moves.

Thank you for your words! YES you're saying what I'm thinking💥what he is 🎶🎵🕺🏻💥 I love it❗ For that I'm subscribing❣ TEN is simply 🤍 beautiful... mind blowing... hot as 🔥F🔥 Looking forward to more. Until next time... happiness ☮ 🌸 be well.

MARCO!!! A little louder for the people in the back! This man...my bias...turned me into a pile of mush...this song...he is such a fricken tease, and a gorgeous one at that...thanks for voicing exactly what was on my delusional mind...ah this man made me gasp and squeal upon first listen...but I am loving this song and the sensual theme...he is killing me with those eyes, and that voice...anytime anyplace Ten...happy fricken birthday to me sir! 💙🌺

He is incredible!! I can’t get enough of Birthday!! Oh my god editing to add that I LOVE YOU SO MUCH! Please don’t ever stop being yourself! “He’s f*cking us and we’re taking it” YES! Thanks for putting into words what we are all thinking 😆😗🔥

please reacts to all ten solos

❤❤❤

Kai, Taemin, and Ten - they sit at the same table. Just on a different level of artistry. I miss Super M!!! You should also check them out.

Thank you so much

Thank you for your reaction, 😻 ten 💖

Your reaction is 10/Ten!

Thank you for your reaction, I love everything you say about Ten 😂❤ I hope you could watch more of his solo songs and dances too! - Solo songs: Paint Me Naked, Dream in a dream, New Heroes - Dance: Devil, Taki Taki, Humble, Coco Chanel, Need to know and Lovely (with Winwin) I'm sure you will love them!!

"this video is free?" asjdbjdbf same

“This video is free?!” 😂😂😂 omg I died laughing

love your reaction 💜 please reaction all TEN's solo 🙏🥺

love your recation thanks

When I saw title b4 playing your video...Me: Marco NOT Ready...💜

Oh this song is definitely sexual. Thank you for voicing that out. Thank you for appreciating all aspects of this video, the vocals, choreography, the production, and etc. And we as fans need to have that line where we keep things classy (just like Ten) but also still respectfully appreciate his artistry. Excited to see more of your NCT reactions! 💚

Thanks for reaction! I love your reaction 😍

Это лучшая реакция которую я когда либо видела! Спасибо! TAEMIN 🤴BURFUL I LOVE YOU O MG FAER 🤴 🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥💜💜💜💜💜💜💜💜💜❤️❤️❤️❤️💜💜💜💜

I love your reaction! You're enjoying the mv and i'm very impressed ❤

Something really cool about your Kai observation… two of his dancers who are also choreographers are responsible for the choreo in this video! Bada Lee and Jrickbaek! Also another one of his dancers, Bengal, is in this video (shorter black hair)! You’re totally right!

Omg inuyasha on the wall! Also Ten watched inuyasha too lol good taste

Surprise surprise Ten was involved in the styling for this mv like he was for Paint Me naked and he actually received this song the same time he did PMN but he said he wasn't feeling it at that time so he focused more on PMN which was something different for him because as you know NCT and especially WayV be making some hoe anthems 😂 so PMN was different but it was also who Ten felt like at that time well this young man felt like he was ready to put that sauce on Birthday and he did and he again got asked to be hands on with the styling as well as the set up for the mv and he delivered because Ten is art and he makes art out of anything he touches so here we have it. Man I'm only watching reactions to this with a few people because between crying over Jin's solo song and crying for a different reason over Ten I am tired 😂. Great reaction as always 💜.

Talking about Kai, a similar hat like in this video had Kai in "Peaches" . Of course he is influenced by his seniors, but his idol and model is Taemin , Ten took the best from both ,Kai and Taemin and created his own style.

If I want to compare between Kai and Ten, Kai is much more timid in his performance but still sexy, but Ten just flip the curtain off and he can go full frontal if he wants to XDXD

Thanks for reacting to WayV Ten, this is amazing and has been on repeat!! Kpop Collab Suggestions Ava Max/NCT 127: So am I Baekhyun/Seo Moon Tak: Hurt Epik High/CL/ZICO: Rosario Jessi/Jay Park: Drip Pentatonix/ATEEZ: ALittle Space