Shellback (songwriter)

Shellback
Shellback in the studio 2015.
Background information
Birth name	Karl Johan Schuster
Born	(1985-02-01) 1 February 1985 (age 32)
Origin	Karlshamn, Sweden
Genres	Pop, electropop, dance-pop, pop rock, melodic death metal
Occupation(s)	Songwriter, record producer, musician
Instruments	Guitar, drums, bass, keyboards, vocals
Years active	2003–present
Associated acts	Max Martin, Benny Blanco, Britney Spears, Taylor Swift, Tove Lo, Usher, Pink, Lily Allen, Adam Lambert, Maroon 5, Avril Lavigne, Blinded Colony, Refused, Harry Gregson-Williams, Kesha
Website	http://www.shellbackmusic.com

Karl Johan Schuster (Swedish: [ˈjuːˈan ˈɧʏstɛr]; born 1 February 1985), known professionally as Shellback, is a Swedish songwriter, record producer, and musician. Shellback was listed as the No. 1 producer of 2012 on Billboard magazine's year end chart, and he also topped the list of their "Top 10 Songwriters Airplay Chart" the same year; he has won two Grammy Awards. He regularly collaborates with songwriter Max Martin, and together they have produced, written, and/or co-written songs for P!nk ("So What", "Raise Your Glass", "Fuckin' Perfect", "Just Like Fire"), Taylor Swift ("We Are Never Ever Getting Back Together", "I Knew You Were Trouble", "22", "Shake It Off", "Blank Space", "Style", "Bad Blood", "Wildest Dreams"), Adam Lambert ("Whataya Want from Me", "If I Had You"), Britney Spears ("If U Seek Amy", "3", "I Wanna Go"), Usher ("DJ Got Us Fallin' in Love", "Scream"), Avril Lavigne ("What the Hell", "Wish You Were Here", "Smile"), Ariana Grande ("Problem"), Adele ("Send My Love (To Your New Lover)"), and Maroon 5 ("One More Night"). Shellback has collaborated with fellow producer Benny Blanco for "Payphone" and "Moves like Jagger" by Maroon 5 and "She Doesn't Mind" by Sean Paul. He has also produced songs by himself, including "Want U Back" by Cher Lloyd and "Animals" by Maroon 5.