As a composer, his music and creativity has shaped and underpinned film and tv productions for the past 20 years. One of his clients was Lasse Hallström for whom he composed the score for Sweden's entry for the Academy Awards 2013, "The Hypnotist".
Oscar’s score for Aurora by Yam Laranas (Netflix) was awarded “Best Overall score 2018” at the Reel Music Awards, in competition with Christophe Beck, Bear McCreary, and Junkie XL, and was pre-selected for the Public Choice Award at the World Soundtrack Awards.
As a songwriter and producer, his songs have gathered more than 200M streams on Spotify and earned him several international gold and platinum albums. He has also been awarded two Swedish Grammys as a songwriter.