The Darkness unveil new song 'Nothing's Gonna Stop Us' - video
The band have made the song available as a free audio download and also premiered an animated video.
The Darkness reformed in 2011 after splitting in 2006. Frontman Justin Hawkins had previously mocked reports of a comeback.
Hawkins, together with bandmates Dan Hawkins, Frankie Poullain and Ed Graham, played a comeback show at the Download Festival.
The Darkness then performed an intimate gig at the 100 Club in London and a full UK and Ireland tour.
Last summer, the band claimed that their comeback album was nearly complete.
The Darkness return to the festival circuit this year with a confirmed slot at Isle of Wight.