Costi (Rapper) Biography: Siblings, Parents, Height, Ethnicity, Age, Net Worth, Movies, Girlfriend

Costi’s real name is Tuomas Kostiainen, and he is a dynamic Finnish rapper who’s lighting up the hip-hop scene with his bold beats and raw lyrics.

Hailing from Tampere, Finland, he’s a proud Finn who’s put his city on the map with his unique blend of traditional and alternative hip-hop.

After a five-year break, Costi exploded back in 2021 with a deal from PME Records, dropping his debut EP Safari and later his chart-topping albums Limbo and Coast to Costi.

Profile

• Full Name: Tuomas Mikael Kostiainen
• Stage Name: Costi
• Born: June 9, 1998
• Age: 27 years old
• Birthplace: Tampere, Finland
• Nationality: Finnish
• Occupation: Rapper, Songwriter
• Height: 180 cm
• Religion: Christianity
• Parents: Mr. and Mrs. Kostiainen
• Siblings: Unknown
• Spouse: None
• Children: None
• Relationship: Single
• Net Worth: $250,000 to $400,000

Early Life & Education

Costi was born on June 9, 1998, in Tampere, Finland, a city he reps with pride in his music.

Raised by his parents, known only as Mr. and Mrs. Kostiainen, he grew up in a working-class neighborhood that shaped his gritty, honest style.

His ethnicity is Finnish, and his Christian faith has been a quiet part of his life. No details are available about his siblings, as Costi keeps his family life private.

As a kid, he was drawn to music, soaking up the sounds of Tampere’s streets and Helsinki’s hip-hop scene. His love for rap started early, inspired by local artists and the energy of Finland’s urban culture.

Costi graduated from Kalevan Lukio, a high school in Tampere, earning his diploma in 2017. He’s said school wasn’t his primary focus—music and friends took center stage.

His real education came from experimenting with beats and rhymes, learning the craft from Tampere’s local scene and online platforms where he first shared his tracks.

Career

Costi’s music journey began in 2016 when he started rapping, but he took a five-year break before bursting back in 2021.

That year, he dropped three singles and a double single, catching the eye of PME Records, who signed him in October 2021.

His debut single with the label, Robben, released that month, set the stage for his EP Safari, which dropped by year’s end and made waves for its fresh sound.

In 2022, singles like “Hole In One,” “Kangastus,” and “Magaluf” went platinum, while his YouTube-only track, “Ei Hedonistei,” showcased his range.

His debut album, Limbo (2022), made a substantial impact on the Finnish charts, praised for its emotionally charged lyrics and innovative beats.

In 2023, Costi released Coast to Costi, which climbed to the top of Finland’s album charts. Tracks like “Tuhlaajapoika” and “Vakooja” became fan favorites, showcasing his ability to blend personal stories with catchy rhythms.

His collaboration with Verkkareis, featuring Ege Zulu and JVG, blended Finnish and African vibes, reaching number one and earning platinum status.

Other standout collaborations include “Yksinkertasta” with Ahti and “DEEP DOWN” with Joe L, both loved for their relatable lyrics and strong beats.

Costi’s live shows are electric, with performances at Finland’s most prominent festivals like Ruisrock, Blockfest, and Weekend Festival, where his high-energy stage presence gets crowds dancing.

He also performed at Peckham Audio in London, proving his international appeal. Costi’s music, rooted in Helsinki slang and Finnish pride, keeps pushing the boundaries of suomiräp.

Awards & Nominations

• 2023 Emma Gala: Nominated for Album of the Year (Limbo)
• 2024 Emma Gala: Nominated for Artist of the Year, Song of the Year (Verkkareis with Ege Zulu and JVG)

Social Media

• Instagram handle: @costi_official
• TikTok handle: @costiofficial
• Facebook: Costi
• YouTube channel: Costi

Personal Life

Costi, 27, is single and keeps his personal life private, focusing on his music and crew.

Standing at 180 cm tall, he has a laid-back style, often seen in streetwear like tracksuits that complement his Verkkareis anthem.

He’s proud of his Finnish roots, frequently using Tampere and Helsinki slang in his lyrics to celebrate his homeland.

When he’s not in the studio, he’s chilling with friends or performing, always carrying the spirit of Finland’s hip-hop scene.

Costi’s all about staying real, pouring his heart into his music, and inspiring the next generation of Finnish rappers.

Net Worth

Costi’s net worth is estimated to be between $250,000 and $400,000.

His money comes from music streams, album sales, live shows, and collabs with big names.

Hits like “Verkkareis” and platinum singles like “Ghetto Love” have boosted his earnings, along with festival gigs and his growing international presence.

Discography

• Safari (EP, 2021)
• Limbo (Album, 2022)
• Coast to Costi (Album, 2023)
• Notable Singles: Robben (2021), Hole In One (2022, Platinum), Kangastus (2022, Platinum), Magaluf (2022, Platinum), Tuhlaajapoika (2023), Vakooja (2023), Verkkareis (with Ege Zulu, JVG) (2023, Platinum), Yksinkertasta (with Ahti) (2023), DEEP DOWN (with Joe L) (2023), Piranha (feat. Averagekidluke) (2024), Koodisto (feat. Turisti) (2024)