I'm not usually in the habit of buying single tracks preferring full albums. Generally, if a band can't make more than one or two songs I'm interested in, then forget it.
But I might make an exception for
Portobella. We heard the track "Say What You Wanna Say" on KCRW and loved it. So we checked out their MySpace page. Most of the other tracks seem to be pretty uninteresting, but for some reason I'm really really digging "Covered in Punk" despite myself. So I may have to spring for those two tracks if and when they become available in the US.