Press kit
Serious Klein
Mass Appeal. Updated 14 November 2026.
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Serious Klein is a Ghanaian-German rapper from Germany's underground hip-hop scene. His album IT'S TOO LATE is out now on Mass Appeal.
Quick facts
- Real name
- Kelvin Boakye
- Also known as
- Seri The King
- Born
- 6 June 1991, Hannover, Germany, to Ghanaian parents
- Label
- Mass Appeal (signed 2024)
- New album
- IT'S TOO LATE, 13 November 2026, 9 tracks
- Debut album
- You Should've Known, 2018, Majestic Casual
- COLORS shows
- Party With The Squad (2016), Peek A Boo (2023)
Key numbers
- 28,474Spotify monthly listenersas of 15 November 2026
- 24,730Spotify followersas of 15 November 2026
- 25,141Instagram followersas of 15 November 2026
- 28,200YouTube subscribersas of 15 November 2026
- 1,481X followersas of 15 November 2026
Biography
Serious Klein, born Kelvin Boakye in Hannover, Germany, to Ghanaian parents, is a rapper who came up through Germany's underground hip-hop scene. Fans also know him as Seri The King.
He started writing at 12 and recorded his first song at 14. He first performed as "key bee" and switched to Serious Klein in 2012, the same year his debut EP The Serious Outlook landed. The Introduction (2015) and Summer 03's Problem (2016) followed.
His debut album You Should've Known came out in 2018 on Majestic Casual. Along the way: two COLORS shows, a performance at the Esquire awards in Dubai in 2017, and the Family Tree / 555 collective with long-time producer Rascal.
Illmatic was the first record he ever bought. In 2024 he signed to Nas' label Mass Appeal.
On 13 November 2026 he released IT'S TOO LATE, his second album and his first full-length for Mass Appeal. Nine tracks, with features from Nana, Boj, Shaun Sky, Mark Lux, NOVA 9, Biirthplace, Zino Vinci and CARLA.
The project isn't saying, "you hurt me." It's more like, "you tried, and I'm still here."
Discography
- 2026IT'S TOO LATEAlbum, Mass Appeal
- 2026Politics (with Mark Lux)Single, Mass Appeal
- 2026Heavy (with Shaun Sky)Single, Mass Appeal
- 2025MOPSingle, Mass Appeal
- 2024OheneSingle, Mass Appeal
- 2024PencilsSingle
- 2024StrongerSingle
- 2023Peek A Boo (A COLORS SHOW)Single
- 2023UpSingle
- 2021Ludus EPEP
- 2018You Should've KnownAlbum, Majestic Casual
- 2016Summer 03's ProblemEP
- 2015The IntroductionEP
- 2012The Serious OutlookEP
The game
It's Too Late: a fighting game built around the album. Reach the summit before totality. Plays in the browser, on phones too.
Selected videos
Press
A rapper hyper-focused on artistry, his first album, 'You Should've Known', held together a forward-thinking stylistic throughline that was his and his alone.
Links
- Spotifyopen.spotify.com/artist/118HlFjDgUCku033j3YD81
- Apple Musicmusic.apple.com/us/artist/serious-klein/1259879084
- YouTubeyoutube.com/@seritheking
- Instagraminstagram.com/seritheking
- Xx.com/seritheking
- Tidaltidal.com/album/561247763
- Deezerdeezer.com/album/1078917162
- Geniusgenius.com/artists/Serious-klein
- Wikipediaen.wikipedia.org/wiki/Serious_Klein
Full press kit with videos and photos: serious.holdr.services/epk