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ASTIN Members Profile

ASTIN Members Profile

(아스틴) is a Kpop boy group that in the last part consisted of members: Seungjun, Hongil, and Hyeongseok. They debuted on March 7, 2019, under King Top Entertainment, with the album “Mirror Mirror”. They presumably disbanded in 2019 as several members left and they have been inactive on their SNS since August 2019.

ASTIN Official Fandom Name: Twinkle
ASTIN Official Fan Colors:

ASTIN Official Accounts:
Twitter: Official_ASTIN
Instagram: @astin.official

ASTIN Members Profile:

Stage Name: Seungjun (승준)
Birth Name: Ji Seungjun (지승준)
Position: Leader, Main Vocalist
Birthday: September 15th, 1998
Zodiac Sign: Virgo
Blood Type: –
Height: 175 cm (5’9″)
Weight: 65 kg (143 lbs)
Instagram: @jx_jun

Seungjun Facts:
– Q. How can you describe ASTIN in one word? “Shine like a star!”.
– Q. What is the special about ASTIN’s debut album? “I sang the hope that desperation of my heart in breaking out.
And I made a choreography performance and participated in it,
so I think that it is a little more special.”


Stage Name: Hongil (홍일)
Birth Name: Yoon Hongil (윤홍일)
Position: Lead Vocalist
Birthday: January 11th, 1999
Zodiac Sign: Capricorn
Blood Type: –
Height: 182 cm (5’11”)
Weight: 70 kg (154 lbs)
Instagram: @astin_y_h.i

Hongil Facts:
– Q.How do you feel about making official debut? “I’m so happy and I want to be dutiful for my parents.”


Stage Name: Hyeongseok (형석)
Birth Name: Chu Hyeongseok (추형석)
Position: Main Rapper, Maknae
Birthday: September 13, 2000
Zodiac Sign: Virgo
Blood Type: –
Height: 183 cm (6’0″)
Weight: 69 kg (139 lbs)
Instagram: @bu___chu

Hyeongseok Facts:
-Q.  What do you say to Starmakers all over the world? “I love all my fans! Indeed! ❤ If you see us on TV, please support us a lot!!.”

Former Members:

Stage Name: Jingyu (진규)
Birth Name: Lee Jingyu (이진규)
Position: Main Rapper, Main Dancer, Vocalist
Birthday: April 22nd, 1998
Zodiac Sign: Taurus
Blood Type: –
Height: 176 cm (5’9″)
Weight: 57 kg (126 lbs)
Instagram: @ijin_gyu98/
TikTok: @ijin_gyu

Jingyu Facts:
– He stresses out about every little thing.
– Q. What would you like to show your fans around the world through the Makestar project? “I want to deliver positive and energetic energy that there is nothing that should not be done!.”
– He left the group in August of 2019 and became a member of AWEEK.


Stage Name: Logan (formerly Mir (미르))
Birth Name: Lee Yoonsang (이윤상)
Position: Lead Rapper, Vocalist
Birthday: March 6th, 2000
Zodiac Sign: Pisces
Blood Type: –
Height: 173 cm (5’8″)
Weight: 57 kg (126 lbs)
Instagram: @astin_mir

Mir Facts:
-Q.  What do you say to Starmakers all over the world? “After a long practice, ASTIN made debut! We’re still a new idol, but we’ll be the best idol for you with all the support!.”
– He also left the group in 2019 and became a member of AWEEK.
– He also changed his stage name to Logan


Stage Name: Junghun (정훈)
Birth Name: Jang Junghun (장정훈)
Position: Lead Vocalist
Birthday: February 27th, 1999
Zodiac Sign: Pisces
Blood Type: –
Height: 173 cm (5’8″)
Weight: 55 kg (121 lbs)
Instagram: @j_jung_hun

Junghun Facts:
– Q. What would you like to show your fans around the world through the Makestar project? “I want to appeal for hard working with all the members anytime!.”


Stage Name: Yeram (예람)
Birth Name: Yang Yeram (양예람)
Position: Vocalist
Birthday: March 31st, 2000
Zodiac Sign: Aries
Blood Type: –
Height: 173 cm (5’8″)
Weight: 59 kg (130 lbs)
Instagram: @astin_yy

Yeram Facts:
– Q.How do you feel about making official debut? “I was so happy to hear that I made my official debut.
All the members have wanted it for a long time.
As much as we do happy things, I hope our energy will have a positive impact on our fans”.
– He did a cover on BlackPink’s “Stay”.

Who is your ASTIN bias?

(Special thanks to Linnea Boqvist, n 🍬 [s/h] #24hrs, ki ara, Giuls’ Blog, Lianne Baede, Midge, cheng chan)

Post by YoonTaeKyung

Note: Please don’t copy-paste the content of this page to other sites/places on the web. If you use info from our profile, please kindly put a link to this post. Thanks a lot! 🙂 – Kprofiles.com

Latest Korean comeback:

Who is your bias in ASTIN? Do you know more facts about the members? Feel free to comment below. It can help new fans find more info about them. 🙂

About the author


  • Yeram <3

  • Linnea Boqvist

    Mir’s real name: Lee Yoonsang
    Hongil’s real name: Yoon Hongil
    Junghun’s real name: Jang Junghun
    Yeram’s real name: Yang Yeram
    Hyeongseok’s real name: Chu Hyeonseok

    Seungjun: 175Cm | 65Kg
    Jingyu: 176Cm | 57Kg
    Junghun: 173Cm | 55Kg
    Yeram: 173Cm | 59Kg
    Mir: 173Cm | 57Kg
    Hyeonseok: 183Cm | 69Kg

    Seungjun: Vocalist, Dancer
    Jingyu: Main Dancer, Vocalist
    Hongil: Sub Vocalist
    Junghun: Sub Vocalist
    Yeram: Sub Vocalist
    Mir: Rapper, Sub Vocalist, Dancer
    Hyeonseok: Rapper, Sub Vocalist

  • n 🍬 [s/h] #24hrs
  • Hongil and Junghun’s stage name Hangul both say “미르”

  • n 🍬 [s/h] #24hrs
  • Giuls’ Blog

    They debuted today 7th march !!


  • ki ara
  • SAAY

    Hi Guys!

    So I just looked at their debut MV, watched a few performances etc,
    I think the positions may be wrong for most of them
    I think it might be this:

    Jingyu – Vocals, Main Rapper
    Seungjun – Main Vocals (this is correct!)
    Hongil – Lead Vocals
    Junghun – Lead Vocals
    Yeram – Vocals
    Mir – Vocals, Lead Rapper
    Hyunsuk – Vocals, Rapper, Maknae

    *I’m not 100% sure who’s the Dancer or Center of the group, they all seem to be on the same page w/ dancing.*

  • KProfiles

    @viki-386407b52900667837b3ca2c0c13fed8:disqus Thanks a lot for the heads up, it’s much appreciated! 🙂

  • KProfiles

    @nsh24hrs:disqus Thanks a lot for the info, it’s much appreciated! 🙂

  • KProfiles

    Thank you for the update, it’s much appreciated! 🙂

  • KProfiles

    Thank you for the update, it’s much appreciated! 🙂

  • kiane

    Why their song not on Spotify?!

  • SAAY

    So Jingyu is def the Main Dancer while Mir seems to be the Lead Dancer

  • Ian

    What happened to Uchan and Elvin? I thought they are in the group. I saw them in Cebu Philippines.

  • Linnea Boqvist

    U.Chan left astin last year and Elvin left Cuz he wanted to Produce and write his own music.

  • Ian

    Oh! Thanks Linnea! I can sleep peacefully now. Cuz I’m really confused, I checked many times their instagram if I’m just mistaken about the members.

  • Ian

    And they are my bias in the group that’s why I’m looking for them.

  • Kiia

    yeram’s instagram is y_ye_ram

  • 송수연

    There’s a crowdfunding event happening here https://bit.ly/2S1f3bJ
    including Astin’s very first album and bunch of other MDs!
    It hasn’t reached the goal yet so please join and make this happen!!!

  • 송수연

    please make the Makestar project happen guys

  • Watermelon Pussy

    As of today, Astin deleted all their pics from their insta and added 7 new ones (one for each member), and it looks like Yeram left because they don’t have his pic, but they have a new member (Changseo) https://uploads.disquscdn.com/images/939d6007c07d65f6d3c6b2ff131cea58f43dedc89c0578febbc07883b2596c9d.jpg
    His insta handle is @park_cs0930

    While we may be sad about Yeram leaving, we should be respectful and welcoming towards Changseo. I hope Yeram is happy and doing well now; I wish him luck in the future.

  • Watermelon Pussy

    I think Jingyu is close to Woojin of Target, judging by this post hyping him up https://www.instagram.com/p/BwncrVwhryg/

  • changmin’s giraffe neck

    the fandom name is confirmed to be Twinkle!!

  • Carieann