Shellback (music producer)
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Karl Johan Schuster, known professionally as Shellback, is a Swedish record producer and songwriter. He was listed as the No. 1 producer of 2012 on Billboard magazine's year end chart, and he also top
Shellback in 2015
Max Martin
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Karl Martin Sandberg, known professionally as Max Martin, is a Swedish record producer and songwriter. He rose to prominence in the late 1990s with songwriting credits on a string of hit singles, such
Shellback (music producer)
…his career as a heavy metal guitarist before transitioning into pop music production and songwriting. Shellback regularly collaborates with songwriter Max Martin and together they have produced, written, or co-written songs for various artists such as P!nk, Taylor Swift, Adam Lambert, Britney Spears, Usher, Avril…
Martin in 2023
Martin in 2015