No doubt about it, this week belonged to newly-minted President-Elect Barack Obama. But that doesn't mean the music world lay dormant: Fall Out Boy, Smashing Pumpkins, and the Decemberists all kicked off their respective U.S. tours, while the Killers treated fans to new tracks in London.

Thursday night in Boston, Chicago emo rockers Fall Out Boy kicked off a brief North American club tour behind their upcoming new album, Folie à Deux (due Dec. 16), by playing exactly one track from the record.

It seems that Fall Out Boy have a fetish about breaking records. Having failed to attain their goal of being the first band to play all seven continents when Antarctica's harsh weather thwarted their travel plans last spring, they've now taken a decidedly less-climate-dependent approach to going down in history.

Move over, Lil Wayne. Your rumored appearance on Fall Out Boy's forthcoming full-length, Folie à Deux, may be surprising, but it's nothing compared to who's actually confirmed to appear: songwriting legend Elvis Costello!

We may not be able to see Russia from our new offices, but we here at SPIN.com have heard some sweet sounds this past week: Paramore unveiled their contribution to the Twilight soundtrack, Eagles of Death Metal let us in on their "Secret Plans," Butch Walker reminded us what "Going Home" was like, and Rachael Yamagata made our hearts beat "Faster." Check out

Sure, emo heavyweights Fall Out Boy have worked with some strange sonic bedfellows in the past -- their remix-trading relationship with Kanye West, for example.