Both songs are set to feature on 'Love Chant', the band's first studio album of original material in nearly 20 years, out this fall.
The new track follows March's single "Fair Field".
Rønnenfelt is currently touring through Europe and the UK.
The "cinematic ceremony" takes place 8 November at Los Angeles Equestrian Center.
According to legal documentation obtained by TMZ, she alleges multiple instances of abuse after they broke up in October.
What novelty Sleep Token had is already starting to wear off.
The album takes its title from a quote by Marilyn Monroe and was inspired by female film stars from the golden age of Hollywood.
"There is no room for subtlety when it comes to advocating for every single human being, for our trans family especially," says Merrill Garbus.
