Someday Came Suddenly was both recorded and released in 2008. Attack Attack! were signed to Rise Records soon after the surface of the band's previous release, an EP entitled If Guns Are Outlawed, Can We Use Swords?, which was also released during the same year. The band toured in-support of Someday Came Suddenly with Escape the Fate, Black Tide, William Control, and Burn Halo after it surfaced.
Five of the album's tracks, "Stick Stickly", "Party Foul", "What Happens If I Can't Check My MySpace When We Get There?", "The People's Elbow", and "Dr. Shavargo Pt. 3", are remastered and renamed versions of the tracks from If Guns Are Outlawed, Can We Use Swords?. "Interlude", is an EDM instrumental song originally released under Caleb Shomo's side project, DJ Club.
Someday Came Suddenly peaked at number 193 on the Billboard 200 and number 25 on the Independent Albums chart. Its highest peak was at number 9 on the Heartseekers Albums chart, where it spent 32 weeks. While the album was commercially a moderate success, it received mostly negative reviews from music critics. Positive reviews was directed at the band's "ability to be both heavy and catchy", negativity was generated around the album's reliance on formulaic musicianship such as "cliched chugging" and "uninspiring riffs", songwriting, and overuse of Auto-Tune on Johnny Franck's clean vocals.
The first single, "Stick Stickly", was released for digital download on June 4, 2008. It is named after the infamous Nickelodean character Stick Stickly, a popsicle stick voiced by Paul Christine that hosted the programming block Nick in the Afternoon, which aired between 1995 and 1998. A music video for the song was released that year as well. The video is infamous for starting the Internet meme "crabcore", which shows one of the band members squatting in a "crab-like" whilst nodding his head and playing the guitar.
The songs "Dr. Shavargo Pt. 3" and "The People's Elbow" were also released as singles. "Dr. Shavargo Pt. 3" also had a music video produced for it, which consists of a live performance with the song dubbed over. Both music videos do not feature Carlile as he was no longer a part of the band during their filmings. Instead his position in the videos was taken by the band's then-lead vocalist, Nick Barham.
- "Hot Grills, and High Tops"
- "Stick Stickly"
- "Bro, Ashley's Here"
- "Shred, White and Blue"
- "Party Foul"
- "What Happens If I Can't Check My MySpace When I Get There?"
- "Interlude" (Instrumental)
- "The People's Elbow"
- "Kickin' Wing, Animal Doctor"
- "Dr. Shavargo Pt. 3"
- "Catfish Soup"
- "Outro" (Instrumental)
- Austin Carlile - unclean vocals
- Andrew Whiting - lead guita
- John Holgado - bass guitar
- Johnny Franck - rhythm guitar and clean vocals
- Andrew Wetzel - drums
- Caleb Shomo - synthesizers and keyboards
- Produced, Engineered, Mixed and Mastered by Joey Sturgis
- Management by Michele Abreim and Eric Rushing
- Booking by David Shapiro
- Legal by Scott Bradford
- Photography by Keaton Andrews
- Artwork by Sons of Nero