Montreal, Quebec, Canada-based melodic death metallers THE AGONIST have released their first group photo featuring new vocalist Vicky Psarakis. The band tapped acclaimed photographer Von Wong to bring its new single, "Disconnect Me", to life.THE AGONIST guitarist Danny Marino says: "After working with Von Wong on our 'Prisoners' photo shoot, we knew he was the only one that could realize our vision for 'Disconnect Me'. It was an 18-hour shoot, but at the end of the day it was more than we could have hoped for." The official lyric video for "Disconnect Me" can be seen below. THE AGONIST last week announced the addition of Vicky Psarakis to the group's ranks. Vicky joined THE AGONIST as the replacement for Alissa White-Gluz, who left the band to focus on her new gig as the frontwoman of ARCH ENEMY. Commented THE AGONIST in a statement: "We announce that after three albums and countless tours, we officially part ways with vocalist Alissa White-Gluz. We wish Alissa all the best with ARCH ENEMY and her future endeavors. "It is the beginning of a new and exciting chapter for THE AGONIST! We are thrilled to announce the newest addition to the THE AGONIST family. Please give a warm welcome to very talented vocalist Vicky Psarakis!" THE AGONIST's third album, "Prisoners", debuted at No. 19 on the Top New Artist Albums (Heatseekers) chart, which lists the best-selling albums by new and developing artists, defined as those who have never appeared in the Top 100 of The Billboard 200. "Prisoners", was released on June 4, 2012 in Europe and June 5, 2012 in North America via Century Media Records. The CD was produced by Christian Donaldson (CRYPTOPSY) and mixed by Tue Madsen (THE HAUNTED, DARK TRANQUILLITY, SUICIDE SILENCE) and it "picks right up where 2009's 'Lullabies For The Dormant Mind' left off, with soaring melodies over complex metal passages that fans of thinking-man's metal can appreciate," according to a press release.