Ethan John Luck is an American musician, producer, multi-instrumentalist and photographer who has played in several bands, most prominently, the ska band The O.C. Supertones, Demon Hunter, Kings of Leon, Morgan Wade, and pop punk band Relient K. He has played on albums for Kutless, Roper, Nikki Clan and Last Tuesday.

The Orange County Supertones were a Christian ska band from Orange County, California. The band was signed to Tooth & Nail Records and its imprint, BEC Recordings, before becoming an independent band. The band temporarily disbanded in 2005, reunited in 2010 to resume touring and recording, and permanently disbanding in 2017. The OC Supertones were one of the first widely successful Christian ska bands.