Listen: Eminem shares new collaboration track with Sia

Eminem has previewed a new song featuring Sia as part of the trailer for new film The Equalizer. Listen to it below.

Sia's chorus can be heard at around the halfway point of the trailer, but the only line from Eminem that makes it in is near the end, when he sings, "It's too late to start over."

Sia and Eminem has previously worked together on track 'Beautiful Pain' from Eminem's 2013 album The Marshall Mathers LP 2.

The collaboration caused a degree of controversy, as many of the lyrics on Eminem's album, such as, "Break a motherfucker's table over the back of a couple of faggots and crack it in half," seemed strongly at odds with Sia's involvement with the LGBT community.

The singer responded to the criticism on Twitter, saying: "I know personally that he is not homophobic, but a performance artist". She added: "I truly understand your point, and am certainly experiencing fear around the repercussions if he doesn't explain his art." 

Here's the trailer for #TheEqualizer starring Denzel Washington, with new music from me featuring @Sia http://t.co/J1zQrJLVCO

The name of the song is not yet known, but the film is set to be released on 26 September in the US.