American electronic dance music producer and deejay Nate Rathbun, better known as his stage name Audien, teams up with singer-songwriter and hitmaker Matthew Koma to release brand new single entitled ‘Serotonin‘. The song is confirmed as the second official single taken from Audien’s debut album, scheduled to be released later this year via Spinnin’ Records. It comes preceded by the first single ‘Elysium‘, released early this year. 'Serotonin‘ was exclusively premiered on BBC Radio 1′s Dance Anthems hosted by Danny Howard on May 22nd. The single will be released on digital retailers on June 16th.