Otto Jettman (born 6 May 1989), better known by his stage name Otto Knows, is a Swedish DJ and music producer who has had a number of hits in Sweden, Belgium and the Netherlands and has collaborated with a number of artists including Britney Spears, Avicii, Sebastian Ingrosso, Alesso and has made remixes for ATB, Imogen Heap and others.
His break came in 2010 on the electronic scene with a remix of "Hide and Seek" by Imogen Heap. This caught the attention of Tim Berg that used his production in "Hide & Seek (Avicii Remix)".
He has had a number of chart successes including his single "iTrack" credited to Tim Berg vs Oliver Ingrosso & Otto Knows and with his remix of Dada Life's "Kick Out the Epic Motherf**ker". His biggest hit is his 2012 European single "Million Voices" that has reached number three on the Ultratop 50, the Belgian Singles Chart and number six on the Dutch Singles Chart. It has also charted within the top 15 of the UK Singles Chart.
In late 2012, Otto remixed "Lies" by British DJ/record producer Burns, which was included in the extended play release of the single in the UK. The remix proved to fair commercially better and peaked at number 32 in the UK Singles Chart on December 24, 2012 after four weeks.
In 2013, he co-wrote and co-produced "Work Bitch" by Britney Spears.