Trillium
There are multiple artists with this name:
1) Trillium is a symphonic metal band formed by Amanda Somerville. In November 2011 the band released their debut album "Alloy".
2) Trillium was an indie rock band based in Ottawa, Canada from 1995 - 2002. The members included: Jamie Read, vocals, rhythm guitar, keyboard; Ben Elkin, lead guitar; Dan Abrams, bass; and Jesse Friedman, drums.
The band formed after Jesse heard Jamie singing to himself at school and was invited to audition.