There are several acts called "Althea."
One is a progressive metal / rock band from Milan, Italy. Formed in 1998, they released their album "Eleven" in 2014.
Another band under the same name is from Japan (also written as アルシア, "Arushia"), and was formed in June 2015. They released their first e.p. "Kimi e" (君へ) in August 2016. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.