These are some of my favorite little gems that probably haven't had a widespread audience. The first and last ones have made it to youtube (the first one is broken up by editing because it's from a film about Athens, GA in the 80s) so I could be wrong.

"Stop It" by Pylon, but I suspect the Yeah, Yeah, Yeahs have heard it because I hear similarities in "Cheated Hearts". "Stop It" is 80s w/out being dated.

"Glue" by Neutral Milk Hotel - I happened to find this one online. It's apparently from the basement tapes vol.2. It has a feel that struck a chord with me.

M. Ward's "O'Brien" as performed with Conor Oberst on ACL. (Not to be confused with "Vincent O'Brien" from the album Transfiguration of Vincent.)