"This isn't a reunion," the band said on its website, "because we never broke up."
The new album, Save Rock and Roll, will be available worldwide on 6 May. Their official tour also kicked off on Monday night in Chicago.
Their new song, My Songs Know What You Did In the Dark (Light Em Up), is available on iTunes.
'Future of Fall out Boy'
"When we were kids the only thing that got us through most days was music," the band's website statement said. "We needed to plug back in and make some music that matters to us. The future of Fall Out Boy starts now."
Fall Out Boy soared to fame in 2005 with the album From Under the Cork Tree. Hit songs like Sugar, We're Goin Down and Dance, Dance mixed energetic guitars and angst-ridden lyrics.
The group released two more albums in 2007 and 2008 but went on an indefinite hiatus in 2009.
The band's members include bassist and lyricist Pete Wentz, vocalist and guitarist Patrick Stump, guitarist Joe Trohman and drummer Andy Hurley.
24.com publishes all comments posted on articles provided that they adhere to our Comments Policy. Should you wish to report a comment for editorial review, please do so by clicking the 'Report Comment' button to the right of each comment.
The family of Marvin Gaye has won a round in a court battle over allegations that last year's hit song Blurred Lines ripped off the late Motown legend's work. Read More »
Michael Jackson's Thriller has been revealed as the scariest song of all time. Read More »
New music video!
Did you know?
A scary night!
Guns N' Roses guitarist!
CenturionLiberty Life PretoriaR5 000 - R50 000 Per Month
Cape TownDatafin Recruitment
HousesR 16 975 000
HousesR 2 500 000
HousesR 1 650 000