KTRENZ Hype Index
How much buzz is around Sunghyun?
19/100
- Coverage momentum
- AI attention
- Upcoming activity
- 53
- 0
- 0
The KTRENZ Hype Index (0–100) blends up to five live signals — KTRENZ editorial coverage momentum over the last 30 days (25%), AI-retrieval attention on the artist (20%), upcoming scheduled activity (15%), external demand from Naver search and YouTube traction (25%), and third-party SNS posts anchored to the act’s releases in the last 30 days (15%) — each log-normalized against a fixed cap. The first three exist for every act. The last two require data we do not have for everyone: where a signal is not measured it is left out and the remaining weights are renormalized, so an act is never scored down for something we simply did not observe.
Quick answers
Sunghyun: your questions
Who is Sunghyun?
- Sunghyun is a K-pop artist, active since 2025.
How much buzz is around Sunghyun right now?
- Sunghyun's KTRENZ Hype Index is 19/100 — a live score blending external search demand, KTRENZ coverage momentum, AI-retrieval attention, and upcoming activity.
When did Sunghyun debut?
- Sunghyun debuted in 2025.
Stories
Latest about Sunghyun
CORTIS's 'GREENGREEN' jumps 43 spots on Billboard 200, re-enters at No. 112 after 16 weeks
CORTIS's second mini album resurfaces on the Billboard 200 after 16 weeks away, climbing 43 spots to No. 112 following an August 24 extended version release.
KTRENZ Newsdesk · 4 d ago
CORTIS 'REDRED' hits 18 consecutive weeks at #1 on Spotify Korea, setting K-pop group record
CORTIS's 'REDRED' extended its own record as the longest #1 K-pop group song on Spotify Korea Weekly, while 'JoyRide' crossed 100M streams.
KTRENZ Newsdesk · 8 d ago
CORTIS drops 'GREENGREEN_playextended' with 2 new tracks on Aug 24
CORTIS adds 'PACK IT UP' and 'MONEYMONEYMONEY' to their 2nd mini album, releasing the 8-track extended edition on August 24.
KTRENZ Newsdesk · 15 d ago
Cortis 'REDRED' drives brand value as all five members credited on every GREENGREEN track
Cortis landed 26th in singer brand value for week 32 of 2026 with 32,432 points. Their track 'REDRED'—written by all five members—ranks 15th on Circle Chart's s
KTRENZ Newsdesk · 21 d ago
CORTIS's 'GREENGREEN' hits 12 weeks on Billboard 200 as North America tour kicks off
CORTIS kicked off their North America tour in Toronto on Aug. 4. Their album 'GREENGREEN' just set a new record for the longest Billboard 200 run by any K-pop b
KTRENZ Newsdesk · 8/5/2026
CORTIS lands on Billboard's '21 Under 21' as sole K-pop boy group on the 2024 list
CORTIS holds a #3 Billboard 200 peak with 'GREENGREEN' and 100 consecutive days on Spotify's daily chart with 'REDRED'.
KTRENZ Newsdesk · 7/31/2026
Cortis 'REDRED' hits 90 days at #1 on Apple Music Korea — second-longest run in chart history
'REDRED' hit 90 straight #1s on Apple Music Korea by July 24. Only BTS's 'Dynamite' (112 days) has done better.
KTRENZ Newsdesk · 7/24/2026
CORTIS kicks off first tour at Inspire Arena — but repeat setlist and 100-min runtime draw criticism
CORTIS kicked off their first tour in Incheon on July 18, but the 1 hour 40 minute runtime and heavy track repetition left fans unimpressed.
KTRENZ Newsdesk · 7/19/2026
Cortis' 'Red Red' hits 70 number-ones on Korean Spotify — most ever for a K-pop group single
'Red Red' hit 70 daily chart-toppers on July 12. Cortis launches their first world tour 'PUT YOUR PHONE DOWN' on July 18.
KTRENZ Newsdesk · 7/16/2026
CORTIS's 'REDRED' hits 70 days at No. 1 on Apple Music Korea, setting a record for boy groups debuted in the last 5 years
'REDRED' hit No. 1 on Apple Music's Top 100: South Korea on April 26 and never dropped. Seventy days later, it's the longest run any boy group has managed since
KTRENZ Newsdesk · 7/6/2026
CORTIS hit Billboard 200 for 7 straight weeks with 'GREENGREEN'
CORTIS's 'GREENGREEN' hits No. 94 on the July 4 Billboard 200, marking the longest chart run for any K-pop boy group that debuted in the last five years.
KTRENZ Newsdesk · 7/1/2026
CORTIS's 'GO!' hits 200M Spotify streams, only boy group debut in 5 years to do so
CORTIS hit 200 million streams on *GO!* by June 26—nine months after the September 2025 release. No boy group that debuted in the last five years has done it.
KTRENZ Newsdesk · 6/28/2026
CORTIS perform at Gwanghwamun World Cup rally as only K-pop group on stage
CORTIS performed at Seoul's Gwanghwamun Plaza on June 12 for a KT-organized World Cup street cheering event ahead of South Korea vs. Czech Republic.
KTRENZ Newsdesk · 6/12/2026
CORTIS 'ACAI' MV hits 10M YouTube views 30 days after release
CORTIS's B-side *ACAI* hit 10 million YouTube views on June 10—the group's second MV to reach the milestone after title track *REDRED*.
KTRENZ Newsdesk · 6/10/2026
CORTIS earn first Japan Gold cert as GREENGREEN charts 4 weeks on Billboard 200
CORTIS's mini album 2 GREENGREEN crossed 100,000 shipments in Japan by May, securing their first Gold disc less than a year after debuting in August.
KTRENZ Newsdesk · 6/10/2026