Karl Johan Schuster (Swedish pronunciation: [ˈjûːan ˈɧʏ̌sːtɛr]; born 1 February 1985), known professionally as Shellback, is a Swedish record producer and songwriter.

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Aug 13, 2025 · Music producer Shellback is making headlines after Taylor Swift revealed that she collaborated with him on her upcoming album The Life of A Showgirl.

Aug 14, 2025 · We're going to take a look at the background of Taylor Swift's frequent collaborator and producer Shellback.

Shellback, whose real name is Karl Johan Schuster, is a Swedish producer, songwriter, and four-time Grammy Award winner. Before jumping into pop music production, he had a career as a heavy metal...

Aug 14, 2025 · Taylor Swift’s upcoming album The Life of a Showgirl, out October 3, marks a big reunion with Swedish producer Shellback, alongside his longtime collaborator Max Martin. The trio …

Oct 6, 2025 · Taylor Swift described working on 'The Life of a Showgirl' with collaborators Max Martin and Shellback as "an unforgettable experience" in a new Instagram post.

Aug 14, 2025 · Karl Johan Schuster, also known as Shellback, was born in the south of Sweden along the Baltic Sea. The now-40-year-old got into music as a drummer for local indie rock bands — he …

Aug 14, 2025 · Shellback, born Karl Johan Schuster in Sweden, transitioned from aspiring heavy metal guitarist to acclaimed pop music producer and songwriter. He began working closely with Max Martin …

Aug 14, 2025 · Born Karl Johan Schuster, Shellback was a 16-year-old aspiring death-metal musician when he began sending Martin his demos. The latter, who has scored an astounding 27 #1 hits since …