album. On April 5, 2010, the band announced the departure of their final founding member, drummer and vocalist, Aaron Gillespie. Aaron played his final show with the band in Milan, Italy, on April 6. On May 10, 2010, through their official MySpace blog, Underoath announced that they will be entering the studio on May 24 to record their follow up to Lost in the Sound of Separation, which was aimed to be released later that year, with producers Matt Goldman (Lost in the Sound of Separation and Define the Great Line) and Jeremy SH Griffith. Following the departure of Gillespie, Underoath recruited ex-Norma Jean drummer Daniel Davison for the recording of their new album. Davison's first tour with the band was "The Cool Tour" featuring As I Lay Dying and Blessthefall. The band then announced that the new album, Ø (Disambiguation), will be released on November 9, 2010, through Tooth & Nail Records. On September 9, 2010, it was announced that Underoath had signed to Roadrunner Records for worldwide distribution outside of the US and Canada. On September 14, 2010, the band held a listening party for Ø (Disambiguation) at Swinghouse Studios in Los Angeles. Danny Sugimoto of spitInthemud.com remarked that the album "feels darker and more chaotic than ones prior, yet with a tasteful sense of calm mixed within." Underoath embarked on their headlining November tour on the 2nd of the month. On November 23, vocalist, Spencer Chamberlain began to suffer from foodborne disease. His position in Underoath was substituted by Tyler Smith of The Word Alive for the show scheduled that day. On October 18, 2011, a compilation, Play Your Old Stuff, was released, containing three previously released albums: The Changing of Times, They're Only Chasing Safety and Define the Great Line, along with new artwork. Anthology, breakup, and farewell tour (2012–2013) On October 2, 2012, the band announced through their Twitter account that they would be disbanding in 2013. In addition, the band released a career-spanning compilation album, Anthology: 1999–2013 on November 6, 2012. On October 9, 2012, they announced their farewell tour with mewithoutYou, As Cities Burn, and letlive. as opening acts. On January 26, 2013, Underoath played their final show at Jannus Live in St. Petersburg, Florida. Aaron Gillespie also performed on the songs Emergency Broadcast :: The End is Near and Reinventing Your Exit. Post-breakup activities, reunion, and tours (2015–2017) In January 2015, the