On February 16, 2015 Skillet announced they were writing material for a new album with recording to begin in June with a potential release in the late half of 2015 or early 2016.[44] On April 8, Skillet released a preview of a new song, later revealed to be called "Out of Hell", on their social media pages.[45] On May 20, 2016 the album's title, Unleashed, was announced and later was released on August 5, 2016 on Atlantic Records.[46] A lyric video, "Feel Invincible", was also made available.[47] On May 26, the lyric video and digital single "Stars" was released, along with a preview for another song titled "Back From the Dead".[48] On June 6, it was announced that "Feel Invincible" was the theme song for TBS' E-League, the live video game tournament.[49] WWE announced on July 7 that it had chosen "Feel Invincible" as an official theme for WWE Battleground.[50] On July 8, the full version of "Back From the Dead" was made available for purchase online.[51] On January 27, 2017 the band released a new recording of "Stars" with an acoustic style, which was included in the film, The Shack.[52] On November 17, 2017, they released a deluxe edition, Unleashed Beyond, containing new material such as "Breaking Free", featuring Lacey Sturm and remixes of "Feel Invincible" and "The Resistance".[53]