They're an underground band from Toronto, fronted by a female vocalist. I usually don't like indie/underground bands, but there is something that i really like about Metric. The lead singer, Emily Haines, seems to show off a pretty good vocal range. She sings pretty low for a woman in some songs.
They have had 3 albums, Grow Up and Blow Away, Old World Underground Where are You Now?, and Live it Out, that have been released, all of which are available on iTunes. Also, there is an early ep called Static Anonymity.
Songs that you should definitely check out by them: "Combat Baby," "Dead Disco," "The Twist," "Monster Hospital," and "Soft Rock Star." There are two versions of "Soft Rock Star," one is really good, the other is pretty terrible, but the more popular of the two versions is the better sounding one.
official website:
http://www.ilovemetric.com