Felix De Laet (born November 30, 1993), 1 professionally known as Lost Frequencies, is a Belgian DJ and music producer. Best known for his single "Are You With Me" in 2014.

In 2014 he became famous with his remix of "Are You With Me" by country artist Easton Corbin. The song appeared on the 2012 Corvin All Over the Road album, but it does not have a single release. Lost Frequencies remixed the single and released it as a single on October 27, 2014. The track led the charts in Belgium the Ultratop chart flamenco on November 15, 2014, also reached number two on the Walloon chart as good. In 2015, the single was at the top of the charts in countries such as Australia, Austria, Germany, Ireland, Switzerland and the United Kingdom. He also has a title in different countries around Europe, reached the Top 10 in Finland, France, the Netherlands, Norway, Spain and Sweden. In 2015 he released the song "Reality" which currently has more than 100,000,000 hits.