Continuing a slowly growing emphasis on song form, The Throes of Winter returned him to both charts in 2015 and topped the Heatseekers Albums chart. He moved to the Casablanca label and a year later the Worlds Apart EP hit number two on the Billboard Top Dance/Electronic Albums chart, also landing on the Billboard 200. A second EP, Polarize, was released by Viper Recordings in April of 2013. At 25 years old, his debut EP, Days to Come, was mentioned on Vibe's Top Electronic Albums list of 2012, and later that year he gained attention internationally when his music picked up regular rotation on BBC's Radio 1. The onetime drummer transitioned to music production in 2007, and shortly thereafter he won a competition held by the trance act Above & Beyond by remixing their song "You Got to Go." Success snowballed. Melding mainstream pop, trance, and dubstep, California producer Jeff Montalvo quickly amassed a cult following under the alias Seven Lions.
© Jason Lymangrover & Marcy Donelson /TiVo Also that year, he paired with Slander and Dabin on the single "First Time." The following year, Seven Lions launched his own Ophelia record label, marking the occasion with the single "Calling You Home." More label releases followed quickly including the Ocean EP with Jason Ross, and the Start Again EP, which included the single "Dreamin'," with Fiora. In 2017, the Creation EP became his first Billboard dance/electronic number one.