RM, born Kim Nam-joon on 12 September 1994 in Sangdo-dong, Seoul, and raised largely in Ilsan, Goyang, is a South Korean rapper, songwriter and record producer best known as the leader and main rapper of BTS. He scored in the top one percent nationally on his university entrance exams and has been widely reported to have an IQ of around 148, details that fed an early public image as the group’s most academically gifted member. After an unsuccessful audition for a rival label, he joined Big Hit Entertainment as a trainee in 2010, on the recommendation of established rapper Sleepy, and trained for roughly three years alongside future bandmates Suga and J-Hope before BTS debuted on 13 June 2013. He performed under the stage name “Rap Monster” until November 2017, when he shortened it to “RM”, and has served as the group’s primary English-language spokesperson and de facto leader throughout its career, according to his biography compiled on Wikipedia, which draws on South Korean entertainment press and label statements.

Before BTS existed, RM rapped in Seoul’s underground hip-hop circuit under the name “Runch Randa” from around 2007, building a reputation on freestyle boards and in informal battles years before he signed with a label. Once BTS had established an international following, he used that grounding to release solo material distinct from the group’s pop-oriented singles. His debut mixtape, “RM”, was given away free in March 2015 and featured tracks including “Do You” and “Voice”, with instrumentals connected to American acts Run the Jewels and Big K.R.I.T. The mixtape ranked 48th on Spin’s list of the year’s 50 best hip-hop albums, making him the first, and at the time only, Korean artist to appear on the list, according to Soompi’s report on the ranking.

RM’s second mixtape, “Mono”, released as a free digital download on 23 October 2018, marked his commercial breakthrough as a solo artist. Built around seven tracks exploring loneliness and self-reflection, it debuted at number 26 on the Billboard 200, making RM the highest-charting Korean solo act in the chart’s history at that point, ahead of the mark previously set by bandmate J-Hope, according to Forbes’s coverage of the debut. The result demonstrated that RM could chart independently of BTS’s existing fanbase momentum, and it set the template for the full solo album career he pursued after the group’s military-service hiatus began.

RM followed “Mono” with two full studio albums. “Indigo”, released in December 2022 and featuring Erykah Badu and Anderson .Paak, debuted at number three on the Billboard 200 and topped the Top Rap Albums chart. “Right Place, Wrong Person”, released in May 2024, went further commercially, debuting at number five on the Billboard 200, his highest solo entry, while again topping Top Rap Albums, a result that made him the first K-pop soloist to place two different albums in the Billboard 200’s top five, according to Soompi’s report on the album’s opening week. As of an October 2024 tally cited on his Wikipedia biography, RM is credited as songwriter or composer on more than 230 released tracks, one of the largest such credits held by any Korean recording artist of his generation.

RM’s public standing extends into South Korean cultural diplomacy as well as music. In July 2021, President Moon Jae-in appointed BTS, with RM as the group’s principal spokesperson, as Special Presidential Envoys for Future Generations and Culture, a role that saw the group accompany the president to the United Nations General Assembly that September; RM described the appointment as “an honour” at the time, according to UPI’s report on the announcement. He was separately awarded a fifth-class Hwagwan Order of Cultural Merit by the South Korean government in 2018, and Forbes Korea’s Power Celebrity rankings have repeatedly placed him among the country’s most prominent individual entertainers during BTS’s touring and hiatus years alike.

Where earlier BTS endorsement deals were negotiated collectively, RM has built an individual fashion profile in recent years. In March 2023, he became Bottega Veneta’s first-ever individual celebrity ambassador, a notable move for a house that had not previously fronted a campaign around a single famous face, according to Vogue Hong Kong’s report on the announcement. RM said at the time that the brand’s absence of visible logos and lack of a social media presence suited his own preference for understated design over overt branding, and he has continued to appear in Bottega Veneta campaign work into 2025, alongside the endorsement deals BTS holds collectively with Samsung, Hyundai and other brands.

RM’s most significant financial interest outside his own music catalogue is his shareholding in HYBE, the listed entertainment company that grew out of Big Hit Entertainment. RM and his six bandmates were granted a combined 1.15 percent stake in HYBE around its October 2020 stock market listing; a full individual holding of that grant was valued at roughly $8.42 million as of measurements taken in September 2024, according to Music Business Worldwide’s breakdown of HYBE’s shareholder register. That stake has grown considerably more valuable since, with HYBE posting record quarterly revenue in mid-2026 on the back of BTS’s post-military comeback tour and album. Unlike some bandmates, RM has not launched a personal company or product line, relying instead on his HYBE shareholding and solo songwriting royalties as his principal sources of income beyond group activities.

RM’s real estate history has been tracked in detail by South Korean and regional entertainment press. He bought a unit at the Hannam The Hill complex in Yongsan District, Seoul, in November 2019 for roughly 4.9 billion won, then sold it in 2021 for about 5.8 billion won, a profit of close to $800,000, before purchasing a unit in the newer, more expensive Nine One Hannam development in the same Hannam-dong neighbourhood for around $5.7 million in cash in March 2021, according to Tatler Asia’s account of his property and luxury holdings, which also documents his ownership of a Patek Philippe Nautilus 5712R and a Rolex Oyster Perpetual Day-Date 40. His most valuable non-property asset is his contemporary art collection, spanning Korean modernists such as Yun Hyong-keun and Kim Yun-shin alongside international names including Philip Guston; roughly 200 pieces from that collection and SFMOMA’s own holdings will go on public display in “RM x SFMOMA”, an exhibition opening at the San Francisco Museum of Modern Art in October 2026, as confirmed by the Korea Herald.