Part of the explosion of Swedish house DJs that dominated dancefloors in 2012, Otto Jettmann is better known by his DJ name, Otto Knows. Jettmann first fell for house music when he turned 16 years old and explored Stockholm's wealth of underground dance clubs. He set out to become a DJ, but in later years he hung with Avicii and the members of Swedish House Mafia, successful producers who influenced Otto to try his hand at remixing. His remix of Imogen Heap's "Hide and Seek" climbed the dance charts in 2010, the same year that Otto joined Avicii and Oliver Ingrosso on their collaborative single "iTrack." A successful remix of Dada Life's "Kick Out the Epic Motherfucker" followed in 2011, and in 2012 he launched his own solo career with the single "A Million Voices." The track dominated EDM clubs across Europe and crossed over to the pop charts in Belgium, the Netherlands, and the United Kingdom. A new single, "Parachute," was released in 2014, followed in 2015 by "Next to Me," the latter of which landed Otto his first Swedish Top Ten hit. "Dying with You," which featured Lindsey Stirling and Alex Aris, dropped in 2016, followed by "With You" in 2017. ~ David Jeffries