There are several different artists named Calm:
1) A Japanese ambient electronica project by Kiyotaka Fukagawa (深川清隆). Active since 1997.
2) A hip hop duo consisting of Time (Raps) and AwareNess (Beats).
3) A Swedish 6-piece experimental/nu metal band based in Stockholm.
4) A Romanian rock band, still underground but quickly making a name for themselves.
5) An American nu-metal band (ex-Seeded Crown)
6) A mid-90's post-hardcore band featuring members of Mohinder.

The Swedish band recently released their second album for free on their website, with all songs available for download. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.