Autographed by Brooks Paschal of Sullivan Flyer for “Cover Your Eyes”
 
Sullivan came together as a trio in 2001. In 2002 they recorded and released Count the Time in Quarter Tones on Forsaken/Tribunal Records. The EP sold well and extensive touring followed. They were subsequently signed to the Tooth & Nail Records label. In 2006, now as a four piece band consisting of Brooks Paschal on lead vocals/rhythm guitar, Zach Harward on bass, Phil Chamberlain on the drums and Tyson Shipman on lead guitar, they released their international debut Hey, I'm a Ghost which featured the single "Down Here, We All Float". They released their second album Cover Your Eyes on June 5, 2007, with new guitarist Jeremy Stanton.
 
Phil Chamberlain's brother Spencer Chamberlain is the screaming lead vocalist portion of Underoath. They were also in the metalcore band This Runs Through (along with current Sullivan guitarist Tyson Shipman) previous to their current musical projects.
 
Former Sullivan drummer Mike Lawrence has played drums in Tribunal Records metalcore band Heartscarved and played guitar and keyboards in Curse Your Name.
 
The band split up in late 2007 while still on their headlining "Cover Your Eyes Tour". The band posted a blog in which they revealed they "didn't want things to come to this", but that "the best course of action for our members is to disband" even though there was "no bad blood between any of us."
 
Paschal, Shipman, and Stanton then joined The Afterlife Kids. They released a self-titled EP in 2010. Brooks Paschal has also released music as a solo artist under his stage name Surprises.
 
On October 13, 2013, the band uploaded a new song called "Profile" to their YouTube account. An acoustic EP featuring versions of five songs from the band's previous records entitled "Undressed" was released on November 27, 2013. The band then announced in the summer of 2014 that they had signed to Spartan Records. They released the album "Heavy Is The Head" on December 9, 2014.