Jake ENHYPEN (Sim Jaeyun): Bio, Facts & 2026 Comeback

By Sarah Preston

Jake, born Sim Jaeyun, is a South Korean-Australian rapper and vocalist in the K-pop group ENHYPEN. He’s one of six members carrying the group forward in 2026 after founding member Heeseung’s exit. Here’s what’s actually confirmed about Jake’s ENHYPEN background, career, and current role, with every fact traced back to a named source.

Quick Facts: Jake ENHYPEN

Who Is Jake From ENHYPEN, Really?

Jake was born on November 15, 2002, in Seoul, then moved to Brisbane, Australia, as a young child, where he attended St Peter’s Lutheran College before returning to South Korea in June 2019 to train, according to the fan-run reference site KProfiles. That upbringing is why you’ll see conflicting nationality labels across the internet.

Official BELIFT LAB materials and outlets like Wikipedia generally list him as South Korean, while interviews and fan databases often describe him as Korean-Australian, reflecting that he spent most of his childhood in Australia and is fully bilingual. That bilingual fluency later made him ENHYPEN’s default English narrator for album intros, outros and interludes, a role fans and Korean entertainment press regularly credit to his upbringing.

If you want the full lineup context, our ENHYPEN members guide for 2026 breaks down every current member’s age, position and background side by side.

From I-LAND to ENHYPEN: How Jake Made the Debut Lineup

Jake trained for roughly nine months, reportedly the shortest training period of any ENHYPEN member, before competing on the 2020 survival show I-LAND, a joint production between CJ ENM and Big Hit Entertainment, according to the ENHYPEN Wiki on Fandom. He was introduced as a contestant on June 1, 2020, and on September 18, 2020, he placed third in the finale with 1,179,633 global votes, securing his spot in the debut lineup.

ENHYPEN then debuted as a seven-member act on November 30, 2020, with the EP Border: Day One, under BELIFT LAB. That release debuted at No. 14 on the Billboard World Albums chart and topped South Korea’s daily Hanteo chart on its first day, per data compiled by concert venue Tacoma Dome for the group’s 2026 tour stop.

What Does Jake Actually Do in ENHYPEN?

Jake performs as a rapper and vocalist, and he’s also the member most identified with ENHYPEN’s English-language content, since he grew up bilingual in Australia. He earned his first songwriting credit in 2022 and has since picked up a Western feature credit that most member profiles don’t mention.

In June 2022, Jake received his first KOMCA (Korea Music Copyright Association) credit as a lyricist and composer for “Shout Out,” a track from ENHYPEN’s Manifesto: Day 1, making him the first member of the group credited as a songwriter, according to Koreaboo. He later told PEOPLE magazine that BTS’s “Magic Shop” and “Mikrokosmos” shaped his approach to the lyrics, per the same report.

Less widely covered: on January 10, 2025, Jake was featured alongside then-member Heeseung on American rapper Flo Rida’s single “Confessions,” alongside singer Paul Russell, according to Wikipedia’s entry on Heeseung. It’s one of the few times an ENHYPEN member has appeared on a Western artist’s single outside a soundtrack feature.

For how his role compares with the rest of the group, see our full ENHYPEN members breakdown.

Jake ENHYPEN’s Role in the 2026 Six-Member Era

ENHYPEN has performed as a six-member group since March 2026, when founding member Heeseung left to pursue a solo career under the stage name EVAN. Jake and the rest of the group have since publicly and repeatedly affirmed the new lineup while continuing to tour and prepare new music as a six-piece.

BELIFT LAB confirmed Heeseung’s departure on March 10, 2026, stating the remaining members — Jungwon, Jay, Jake, Sunghoon, Sunoo and Ni-Ki — would continue as ENHYPEN, according to Billboard. The news triggered visible fan backlash, including protests outside HYBE’s Seoul and Los Angeles offices and an online petition, as reported by Forbes.

Shortly after, Jake gave fans a preview of what was coming next. In a Billboard interview cited by Forbes, he described the group’s upcoming project as “another level” and said 2026 would be a major year for ENHYPEN. That project turned out to be The Sin: Bliss, a six-track mini-album confirmed for release on August 21, 2026 — ENHYPEN’s first as a six-member group, per Forbes and the Korean outlet Soompi.

By July 2026, fan pushback over the reduced lineup was still ongoing enough that Jungwon and Jay addressed it directly on Weverse Live and on stage, both stating plainly that ENHYPEN is now a six-member group, per Forbes. We covered the full story, including what it means for Heeseung’s own solo career, in our piece on Heeseung’s ENHYPEN exit and EVAN’s solo debut.

Between the lineup change and the comeback, the group has kept touring on their fourth world trek, Blood Saga, which opened with three sold-out nights in Seoul on May 1-3, 2026, before heading to Latin America, the US and, in 2027, Europe — including a stop at London’s O2 Arena on March 9, 2027, according to Billboard’s tour date coverage. That London date is worth flagging for UK fans specifically, since it’s ENHYPEN’s only confirmed UK stop in 2027 so far.

Jake ENHYPEN Career Timeline: Key Dates

Beyond Music: Jake’s Ambassador Roles and Collaborations

Jake and bandmate Sunghoon have represented Tiffany & Co. as regional “Friends of the House” since 2023, appearing in campaigns and on magazine covers including Cosmopolitan Korea and Esquire Korea, and attending the brand’s Tiffany Ginza flagship opening in Tokyo in mid-2025, according to reporting from Sportskeeda and Tiffany & Co.’s own social channels.

On the group side, ENHYPEN has landed six Billboard 200 top-10 albums since its debut, including Romance: Untold (No. 2, 2024), Desire: Unleash (No. 3, 2025) and The Sin: Vanish (No. 2, January 2026), per figures published by Tacoma Dome ahead of the group’s July 2026 tour stop there. The group also became, in 2025, the fastest K-pop boy group to perform at Coachella, according to the same source.

FAQs

What is Jake from ENHYPEN’s real name?

His full name is Sim Jaeyun, written in Western order as Jake Sim. He performs under the single stage name Jake.

Is Jake from ENHYPEN Korean or Australian?

He was born in Seoul, South Korea, and grew up in Brisbane, Australia, from early childhood, per KProfiles. That’s why official profiles usually list him as South Korean, while interviews and fan sources often refer to him as Korean-Australian.

How tall is Jake ENHYPEN?

He’s listed at 176 cm (5’9″) across ENHYPEN’s agency-sourced fan profiles.

Is ENHYPEN still seven members in 2026?

No. ENHYPEN has been a six-member group — Jungwon, Jay, Jake, Sunghoon, Sunoo and Ni-Ki — since Heeseung left in March 2026 to go solo as EVAN, per Billboard. Read the full breakdown in our Heeseung exit and EVAN solo debut explainer.

Has Jake written any ENHYPEN songs?

Yes. He earned his first KOMCA credit as a lyricist and composer on “Shout Out,” from 2022’s Manifesto: Day 1, according to Koreaboo.

Whether fans search for him as Jake, Jake Sim, or Sim Jaeyun, ENHYPEN’s rapper-vocalist is heading into the busiest stretch of his career yet: a comeback, a world tour, and a six-member group still proving itself to skeptical fans. For the tour schedule as it develops, check our running Blood Saga World Tour date guide.

Sarah Preston

Founder & Lead Writer, Derek Time

Derek covers technology, business, entertainment, and digital trends for Derek Time, focusing on making complex topics clear and practical. Outside of writing, he’s usually testing new apps or keeping an eye on what’s next in tech and business.