A Fever You Can't Sweat Out is the debut studio album by American pop rock band Panic!

The group formed in Las Vegas in 2004 and began posting demos online, which caught the attention of Fall Out Boy bassist Pete Wentz.

It is the only album released during original bassist Brent Wilson's time in the band, but the exact nature of his involvement in the writing and recording process became a source of contention upon his dismissal from the group in mid-2006.

In late 2015, it received a double platinum certification from the Recording Industry Association of America (RIAA) for 2 million US shipments.

[5] The band was formed in 2004, at this time named Pet Salamander, in the suburban area of Summerlin, Las Vegas, by childhood friends Ryan Ross on guitar and Spencer Smith on drums.

[10] The monotonous nature of local Las Vegas bands influenced them to be different and creative, and they soon began recording experimental demos.

[6] On a whim, they sent a link to Fall Out Boy bassist Pete Wentz via a LiveJournal account, and around this time they had changed the name of the band to Panic at the Disco.

Wentz, who was in Los Angeles at the time with the rest of Fall Out Boy working on their first major-label album, From Under the Cork Tree, drove to Las Vegas to meet the band.

Around this time they had put an exclamation point at the end of Panic as a joke, and as they said in an interview years later, it stuck with them and became the official name of the band.

[9] At the time of their signing, all of the band members were still in high school, with the exception of Ross, who was forced to leave the University of Nevada, Las Vegas.

[6] After completing high school, the group members boarded a van and drove from Las Vegas to College Park, Maryland to record the album.

[12] Fueled by Ramen wanted the band to enter the studio earlier in the year, but Ross was attending college at UNLV and the others were still in high school.

Urie graduated in May 2005 and the band pushed recording back to June; Smith and Wilson completed school online during production.

"We were in the studio for 14 hours a day for five weeks; we might have started losing our minds a little bit," Ross recalled humorously in a 2006 interview.

[15] Wilson denied their statement, insisting that he was present in the studio every day, participating in writing, and teaching Urie how to play certain parts.

[17] The album is split in two stylistically, with the first half of the record being primarily pop-punk, while additionally incorporating electronic instruments such as synthesizers and drum machines.

[26] Urie specifically cited the Beatles, Queen, the Smiths, Name Taken, and the Keane song "Everybody's Changing" as influences on the album.

[13] Cory D. Byrom of Pitchfork was perhaps the most negative, criticizing the state of contemporary emo and bemoaning the album's apparent lack of "sincerity, creativity, or originality".

In September 2011, "I Write Sins Not Tragedies" won MTV's Best Music Video of the 2000s[41] Rolling Stone listed it among the "40 Greatest Emo Albums of All Time" in 2016, with James Montgomery dubbing it a "genre-defying blueprint" and commenting "it's difficult to argue that it's not a snapshot of where "emo" was at in 2005, right down to the sentence-long song titles.