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

Sharing a commitment to pioneering intellectual property and unparalleled customer service, SHELLBACK provides semiconductor capital equipment and services to enable emerging and legacy …

According to the activities of the ritual, a Shellback is anointed as a Son or Daughter of King Neptune. According to the ceremony, a senior officer who is a Trusty Shellback, will dress as King Neptune …

Oct 3, 2025 · As Taylor Swift drops her 12th album The Life of a Showgirl on Oct. 3, learn more about Max Martin and Shellback, the Swedish musicians who produced the songs straight out of her …

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. This week, the pop star sent …

Karl Johan Schuster (born 1 February 1985), known famously as Shellback, is a songwriter and record producer and multi-instrumentalist from Karlshamn, Sweden.

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...

Karl “Shellback” Schuster, known mononymously as Shellback, is a Swedish music producer, songwriter, and musician who has left a significant mark on the global music scene.

2 days ago · Shellback claims the No. 2 spot on Billboard’s producer and songwriter rankings, reflecting his lasting impact and consistent chart success.