There is several artists with this name.
1) A singer/songwriter from America who is the daughter of actor Ted Danson. She has been featured on "The Hills", "CSI", "The City" & more. Her real name is Kat Danson which was her old stage name. Two remix EPs were released under the moniker Lux Livid. She changed it to Lux so people wouldn't know her for being Ted Danson's daughter.
Sources: (https://www.myspace.com/lux) (https://www.facebook.com/LuxOfficial?fref=ts) Read more on Last.fm