There are multiple artists using this name.
1. A British folk-punk band
Crowns were a folk punk band from Launceston, Cornwall, formed in 2010. The band consisted of lead singer and guitarist Bill Jefferson, bass player Jake Butler, mandolinist Jack Speckleton and drummer Rob Ramplin (replaced Nathan Haynes in 2013). Crowns played their final show in September 2014.
2. A solo artist from Toronto, Canada making instrumental lo-fi.
3. A 60's Greek garage rock band.
4. A U.S. Chillwave band. Read more on Last.fm