There's a very specific kind of ENFP 7. One that has zero filter, is very kooky, says whatever they think, has no concept of being ashamed... of course, this is Jaejoong.

ENFP (Ne-Fi>Te-Si)

Jaejoong's sense of humour is truly distinctive. He often goes on random tangents and sees possibilities that most wouldn't think of. He's blunt in his opinions in a way, rather unapologetic and individualistic. He definitely wears his heart out in the open. He can make missteps, but he seems to have a good moral code.

Jaejoong's Ne thought process... let's follow his thinking in the span of the first few minutes.

Changin's mom is mad at me, I'm sorry, but... -> but he's psychologically torturing me!! -> also, look at his arms!! -> we show our love by fighting (like schoolboys) -> doesn't hitting each other hard mean your love is stronger ? don't you hug your loved ones strong? -> what if Changmin hits me again?

Suffice to say... his stream of consciousness jumps around a lot.

Jaejoong is one of the most prolific idol songwriters. He's spoken about how personal expression and identity are important for him in this process:

"I was relieved and glad to have different space of expression for each song." (Fi Fi Fi Fi...)

His Te has developed too: (from the same, recent interview)

"I can think and lead the artists in the point of the artist's view, on top of the materialistic business mindset when considering what artists actually need and want."

Although sometimes, he can be rather rough, he is actually the one most like a mother. He is the most gentle member. -Yunho (Fi-Te in a nutshell...)

Let's not forget him whining on Twitter:

"I don't even know if I can say something like this... Yunho, Changmin, I miss you both... No matter what people say, they're my members..."

High Te/Si would never. Lol.

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7w8 sp/so

"[Jaejoong] has that persona where he's down to do whatever as long as everyone's having a good time. He's very good at making strangers feel comfortable." -JYJ tour MC

Jaejoong is truly extraverted and experience-seeking. He tends to indulge and can come off as ESFP or ENFJ-like. He's all about networking, finding opportunities, keeping a wide range of friends, and being busy. He's always been active as an idol, and he shows no signs of slowing down now.

ESTJ (Te-Si>Ne-Fi)

A lot of the most talented idols are ESTJs (Jihyo from TWICE comes to mind). They tend to be go-getters, perfectionistic, critical, hard working, and function well under stress and in extreme routines. The so-called 'executive type' is pragmatic, logical, and action-oriented.

His whole Singles interview about Mozart musical is Te-Si--focusing on his past vs now, structured linear thinking (Lots of I used to be like this... now I'm like this) Straightforward and logical as opposed to emotional.

Mine was the most intense [role] (compared to Song Chang-eui and Ryu Jung-han). Haha. I didn’t mean to kiss too passionately either. I didn’t do it like that even during the rehearsals, but I fell into it as I was on the stage. 

Also, this video of Junsu and his brother Mooyoung (who is an ENFP) shows some stereotypical, but funny differences with ESTJ and ENFP.

His Ne is pretty apparent to fans in his sense of humour--that, and he's dipped his toes into a lot of different avenues beyond being an idol.

And this exchange when he was on Jaefriends, super ESTJ:

Junsu: [re: the 2 years being in the army] You were free. Jaejoong: I thought I didn't need to visit you there! Junsu: You could've come for just an hour, even... I'm sure you could've found one hour.

Oh Junsu, is that inferior Fi I'm sensing...? Hahaha. He can't properly express his feelings so he uses an appeal to logic.

An example of Junsu's Te-dominance causing some *ahem* controversy...

Is it true? Yes. Should you say it? ...Well...

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3w4 sp/sx

Junsu is... suited to the celebrity lifestyle. He's released music, produced, done musicals, done real estate, he's a true overachiever. I think being a 3, he can seem ENTJ/Ni-like because he's forward thinking in his career goals.

I'm not super confident on his instinctual variant. I like sp/sx for him because he seems to be rather independent for a 3, and on the sx side, focuses on his performer persona (being alluring and exciting, "CHARISMA!!")

Junsu has never worn his heart on his sleeve in the way of high-Fi users Yoochun and Jaejoong. This is his strength as a Te user. He has no vindictive feelings towards his former members; he made his decision for himself and his career, and that's that.

BONUS~ When Te is flustered in the presence of Ti...

Changmin: Let's hear the native-English speaker Junsu say it.

Junsu: [Survivor]

Changmin: No good. Really, no good.

ENFJ (Fe-Ni>Se-Ti)

ENFJ is one of the rarest MBTI types. They are visionaries, forward-thinking, charming, and naturally gravitate to leadership positions.

Yunho is one of the most obvious ENFJs in kpop. He can sometimes be... too obliging. At the same time, Ni-Se gives him a sense of intensity, moreso than an xSFJ. Still, that dominant Fe is... VERY STRONG.

Yunho is the only member of TVXQ (+ Junsu) who never lashed out at a sasaeng, and by far the most forgiving towards his fans. He ensured a fan wouldn't get hit by a taxi (Fe-Se) and when an anti-fan poisoned him, he wanted to make sure she wasn't charged with anything. Similarly, he once interfered in a public dispute:

"Despite having to bear the brunt of a few punches myself, I interfered and diffused the situation..."

Fe-Se acting in the moment. He seems to show the tactile/bodily intelligence associated with Se.

To understand his Fe, consider the way he spoke when judging contestants on K-POP LEGEND MATCH.

As for Ni, I mean, Yunho moved away from his family when he was like 18, even sleeping in a bus station, because he believed in his dream of being an idol THAT MUCH. There's something else about him that's Ni-Se. I find, being a Ne-Si user, we tend to bounce around in our ideas and often contradict ourselves with our thoughts. But Yunho is so... stable. He has that focused, one-track-minded, Ni consciousness.

Other quotes:

"I detest the words ‘in the past’. It's important to keep moving."

"I feel that we are here because of our past, and what we are doing now leads us to the future, so I don’t really think of going back."

His inferior Ti is also obvious, especially when he was younger. The other members were better at making witty comments, but Yunho always focused on toeing the line (keeping fans happy) so as a result he seems more restrained.

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1w2 so/sp

Yunho clearly strives for perfection. He takes on mentorship roles, he's enthusiastic and very much community-minded (known for supporting causes, giving donations, etc) He's a Fe user who isn't passive, but assertive.

Sometimes, he can be so forceful and righteous that he creates tension (Like Teen Top's C.A.P getting angry that Yunho scolded him for not working hard on a performance). Or this--

"TVXQ's Yunho sent me a very long text with feedback. And when I didn't read it, he called me at something like 1:30 AM."

(Minho talking about his solo preparations)

ISTP (Ti-Se>Ni-Fe)

ISTPs are sensory thinkers, focused on the here and the now, tangibility, practicality. The stereotypical image of an ISTP is a mechanic (applying problem solving to the real world).

Compare him to Yunho, a Fe-dom. Yunho never 'slipped up' lashing out at sasaengs, but Changmin yanked one out of a taxi (TiSe problem solving skills??? lol)

Also, THIS fansign...

Borderline abrasive Ti and physical humour Se. High Fe would've been waaay more concerned about the optics of acting like this w/ fans.

Quotes that show him using Ti exploration, deconstructing logic to understand things more deeply:

[UFO replying to someone wanting to go to the public bath w/ him] “That means you’re a guy? You’re calling hyung ‘oppa’?” “When a swarm of geese prepare to migrate, they never forget to make the correct formation. I don’t think it’s right when a few of the geese who chose to break away still consider themselves as part of the flock.” (lmao well that's Ti-Ni...) "Algorithms only show us things that are similar to what we've seen before... It's convenient in a way, but it's so easy to lose diversity of opinion... I try to look at different opinions."

OTHER QUOTES:

“If you just sit still, things won’t work out.” (Ti-Se)

[I don't want to be loved by everyone, but...] "I want my music to keep moving and evolving." (forward-thinking Ni)

I considered ISTJ or INTP, but he's always been 'no-holds barred' such as on variety shows: talking about porn or Yunho's chest fat on national TV. He doesn't seem like an overthinker in the way INTPs (like me) are.

Obviously because of the nature of his job, he's had to become more controlled/develop his Fe, but he still has a no-nonsense style of communicating with fans.

~

9w8 sp/so

Concerned with material comforts, maintaining their independence, sensory enjoyment. 'Don't disturb my peace'. 9w8 = generally accommodating but can lash out.

"In the summer, after finishing all of our scheduled activities for the day, I sometimes like to enjoy a cold can of beer. To maximize my experience, I’ll go to the first floor and record the cries of cicadas on my phone." [also shows his Se] "You should never run away from home. That's where the warm meals are." "I try not to think about [sex] but I can't."