Symphonic pop ensemble The Polyphonic Spree [ tickets ] and alt-rockers Rooney [ tickets ] team up this fall for a co-headlining tour, with both acts currently touting new studio releases.

The unlikely pairing--the Dallas-based Polyphonic Spree is a 22-person group that dresses uniformly in black, military-style jumpsuits, and California's Rooney is a standard-issue five-man alt-pop act--will kick things off Oct. 14 in Pontiac, MI.

The 20-city tour will wind through the country, following a West Coast leg with a finishing kick in the Spree's Texas homeland. Illinois outfit The Redwalls [ tickets ]--an American band that specializes in British Invasion-influenced pop--will further muddy the genre waters by providing opening support throughout the trek. All dates are shown below.

Released in June, "The Fragile Army"--Polyphonic Spree's third studio album, and first since 2004's "Together We're Heavy"--was co-produced by John Congleton (of Dallas band The Paper Chase) and The Speekers (a.k.a. Spree frontman Tim DeLaughter and vocalist Julie Doyle).

"For our last record, we'd been on the road so long that songs had been developed there and were pretty much fully arranged by the time of recording," DeLaughter said in a press release. "But this is a very spontaneous album. We'd been off the road for a while, and all the players collaborated on the spot in the studio, learning one song at a time and then collaborating on ideas and parts."

Rooney [ tickets ] released "Calling the World" in July, it's long-awaited follow-up to the band's self-titled 2003 debut. The group told CBS News entertainment site The ShowBuzz that it recorded two full albums worth of new material with two different producers as it attempted to avoid the sophomore jinx.

"I think that in a weird way, all this time we took to turn it around was really good," drummer Ned Brower told the CBS site. "I think we had it fairly easy in our first record and everything went smoothly. I think we were put to the test in the last couple of years making the album. It's been amazing."