They've got a new album coming out soon (tomorrow, the 8th, here in Canada, 29th in the US) called "Watch Out!" If the first single
"Accidents" is any indication, it's a big improvement over their last album (which was great already IMHO. Check them out (do NOT go to alexisonfire.com, it's not their site, it's the site for the stripper they're named after

)
Here's their site:
http://www.theonlybandever.com
Their new single:
Accidents
Here's a couple of their older songs:
44. Calliber Love Letter
Polaroids of Polar Bears
Go to the ecard on this site to see a live video of "Pulminary Archery":
http://www.scenemusicfestival.com/