Arnthor Birgisson (born 1976) Swedish songwriter and producer born in Reykjavik, Iceland
In 2011, Cesarion got a record deal with Aristotracks after meeting Arnthor Birgisson and Linus Andreen.
Emilia has cooperated with a number of well established producers and songwriters, such as Arnthor Birgisson, Jörgen Elofsson, Stonebridge, RedOne and Peter Nordahl.
"If That's OK with You" is a song written by Savan Kotecha, Arnthor Birgisson and Max Martin for The X Factor winner Shayne Ward from his second studio album "Breathless".