As of April 2026, Solar (Kim Yong-sun) has an estimated net worth of $5 million to $7 million.
While she first gained global fame as the leader and powerhouse vocalist of MAMAMOO, her financial trajectory in the mid-2020s has been defined by her transformation into a “CEO-dol” and a savvy digital entrepreneur.
Solar has successfully diversified her income through high-yielding YouTube content, strategic real estate investments, and a relentless solo discography that spans multiple international markets.
Solar’s wealth is notable because it is built on a foundation of direct ownership and creative control.
Unlike many idols who rely solely on agency-distributed payouts, Solar has pioneered a self-made path, often being candid with her fans about her earnings and business decisions.
This transparency has only strengthened her “brand power,” making her a top choice for advertisers looking for authentic celebrity partners.
Pillars of Profit: Real Estate, YouTube, and Solo Sales
Solar’s financial portfolio is built on several high-value “engines” that ensure steady revenue regardless of MAMAMOO’s group activity.
Her primary sources of wealth include:
- Strategic Real Estate Investments: In 2021, Solar made headlines for purchasing a small building in Sinchon, Seoul, for approximately $4 million (4.5 billion KRW). By 2026, this property has appreciated significantly due to the redevelopment and commercial growth of the Sinchon area. Solar reportedly paid off the mortgage within months of the purchase, securing a massive physical asset that provides both rental income and long-term capital gains.
- The “Solarsido” YouTube Empire: Solar was one of the first major K-pop idols to launch a personal YouTube channel, solarsido. In its peak months, she has revealed that the channel generated over 100 million KRW ($85,000 USD) in monthly revenue. By early 2026, her channel has amassed over 3.25 million subscribers and hundreds of millions of views. “I started the channel to show a more human side, but I realized it’s a powerful tool for independence,” she shared in a recent vlog.
- International Solo Expansion: Solar has aggressively pursued the global market. In 2025 and 2026, she released several non-album singles, including her Mandarin debut “Floating Free” and the collaboration “Your Own Star” with Taiwanese band Accusefive. Her single album Want (2025) and EP Colours (2024) saw strong sales, with Colours alone moving nearly 60,000 copies in South Korea.
- Musical Theatre and Film: Solar has become a staple of the Seoul musical theatre scene, reprising her leading role in Mata Hari in 2025. Additionally, her 2026 film debut in the horror movie The Cursed has opened up new revenue streams through acting fees and potential international distribution deals.
2026: The 12th Anniversary Global Project
The current year, 2026, is set to be one of Solar’s most profitable to date. To celebrate MAMAMOO’s 12th anniversary, her agency RBW confirmed a massive global project involving all four members.
This includes a full-group album scheduled for June 2026 and a 26-city world tour covering Asia, the Americas, and Europe.
World tours are historically the most lucrative events for K-pop idols, with revenue generated from ticket sales, VIP packages, and exclusive tour merchandise.
Solar’s financial growth is a reflection of her personal philosophy on career longevity.
She has moved beyond the “idol” label to become a versatile entertainer and business owner.
Whether she is judging a vocal competition, hosting a variety show, or managing her property in Sinchon, Solar has ensured that she is “HONEY” in more ways than one.
As she often tells her subscribers at the end of her videos, “I’ll live my way now, so please support me,”- and from a financial perspective, that way is clearly paying off.
