Idol group XG chief producer, Junho Sakai, who works under the name Simon Jakops (or simply JAKOPS), was arrested in Japan on suspicion of drug possession on February 23.
According to a source from the investigation, four suspects, including Sakai, are accused of possessing bags of cocaine at a hotel in Aichi Prefecture. Reports indicate that the Drug and Firearm Investigation Division acted on an anonymous tip that suggested the suspects were using cocaine and searched their hotel room.
Four bags of cocaine and dried cannabis were reportedly seized from the room. Multiple Japanese media outlets reported that the Tokyo Metropolitan Police Department arrested Sakai and three others for allegedly violating Japan’s Narcotic Control Act.
XG, the idol group that gave the K-pop world songs such as “IS THIS LOVE,” “LEFT RIGHT,” “SHOOTING STAR,” and “WOKE UP,” stirred the pop world with their extravagant music videos, infectious choreography, and catchy hooks when they debuted in 2022. The girl group just released their debut album The Core on January 23.
Sakai debuted as JAKOPS in 2009, participating in MC Mong’s fifth album, and joined the boy group Dalmatians in 2012, later becoming active in South Korea. Starting his career as a producer in 2014, he founded record label XGALX in 2017 and debuted the global girl group XG in 2022.
Frequently Asked Questions
SIMON JAKOPS, whose real name is Junho Sakai, is the chief producer of XG and founder of record label XGALX. He previously debuted as an idol in 2009 and was a member of boy group Dalmatians before becoming a producer in 2014.
SIMON JAKOPS was arrested on February 23 on suspicion of cocaine possession, one of four suspects police allege were found with bags of cocaine and dried cannabis at a hotel in Aichi Prefecture following an anonymous tip.
Japanese media reported that the Tokyo Metropolitan Police Department arrested Sakai and three others for allegedly violating Japan’s Narcotic Control Act.
XG is a global girl group that debuted in 2022 under XGALX, known for songs including “IS THIS LOVE,” “LEFT RIGHT,” “SHOOTING STAR,” and “WOKE UP,” and released their debut album, The Core, on January 23.
The article does not indicate a public statement from XG or XGALX regarding the arrest; details on any official response were not available at the time of reporting.
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Elijah Pareño
Elijah Pareño is the Music Writer of Rolling Stone Philippines. He writes daily music news, features, reviews, and radar stories of the website.
In addition to music writing, Pareño has written about the behind-the-scenes writers and producers from the P-pop scene, interviewed hip-hop artists like Shanti Dope and Zae, and featured up-and-coming artists for the Music Forecast 2026. Aside from music, Pareño has written about the state of affairs that affects pop culture. He wrote a movie review for 'Mortal Kombat II' and reported and interviewed photojournalists at the September 21, 2025 protests in Luneta and Mendiola.
Prior to working in Rolling Stone Philippines, Pareño was a freelance writer for 3 years and independent live music promoter
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