There are several different artists named Calm.
1) A Japanese ambient electronica band.
2) Time (Raps) and AwareNess (Beats) are one.
3) A Swedish 6-piece experimental/nu metal band.
4) Calm is also a Romanian rock band, still underground but quickly making a name for themselves.
5) There also was an American nu-metal band (ex-Seeded Crown)
6) A mid-90's post-hardcore band featuring members of Mohinder.