| Shellback | |
|---|---|
| Birth name | Karl Johan Schuster |
| Born | February 1, 1985 |
| Origin | Karlshamn, Sweden |
| Occupations | Songwriter, record producer, musician |
| Years active | 2006–present |
| Associated acts | Max Martin, Dr. Luke |
Karl Johan Schuster (born February 1, 1985), better known by his stage name Shellback, is a songwriter, record producer and musician from Karlshamn, Sweden.[1] He regularly collaborates with songwriter Max Martin, and together they've written "So What", "Raise Your Glass", "Whataya Want from Me" and "Fuckin' Perfect" by Pink, "If U Seek Amy", "3" and "I Wanna Go" by Britney Spears, and "DJ Got Us Fallin' in Love" by Usher all of them which have charted within the top 20 on the Billboard Hot 100 in the United States. Shellback also co-wrote and co-produced "Moves Like Jagger" by Maroon 5 that spent eight weeks at #1 on the World Chart.
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Johan started out as a drummer in local indierock bands in Karlshamn, before joining the hardcore/metal scene as a vocalist for the bands Skörda and Blinded Colony. Following the release of Bedtime Prayers though Pivotal Rockordings, and extensive touring of Europe with Blinded Colony, Johan left the band in August 2007 to focus on songwriting.[2]
Johan currently uses the name Shellback for his songwriting and production credits and is since 2007 part of Max Martin's Maratone production studio.[1][3] He co-wrote Pink's 2008 single "So What" with Pink and Max Martin, and Britney Spears's 2008 single "If U Seek Amy", with Savan Kotecha, Alexander Kronlund and Max Martin.[4] He also contributed as an instrumentalist to Pink's Funhouse album, which features the song "So What".[5]
The following singles peaked inside the top ten on the Billboard Hot 100.