Sleigh Bells have taken to Twitter to accuse Demi Lovato of sampling two of their songs without permission.
Lovato released her fifth studio album, Confident, last month. The album's deluxe edition featured four bonus tracks, one of which, 'Stars', Sleigh Bells took issue with.
"Demi Lovato flattered you guys sampled 'Infinity Guitars' & 'Riot Rhythm' for 'Stars'," they wrote on Twitter, "but we were not contacted. Gotta clear those." The tweet has received over 1,000 favourites.
.@ddlovato Demi Lovato flattered you guys sampled Infinity Guitars & Riot Rhythm for "Stars" but we were not contacted. Gotta clear those.
— SLEIGH BELLS (@sleighbells) November 2, 2015
Listen to Demi Lovato 'Stars' below
Listen to 'Infinity Guitars' below
Listen to 'Riot Rhythm' below
Lovato is yet to respond to the accusations - but this isn't the first time this year she's been accused of plagiarism. When Katy Perry fans accused her of copying 'I Kissed A Girl' with her track 'Cool For The Summer, Lovato tweeted, "With all the advances we've made in the LGBT community I think more than one female artist can kiss a girl and like it...."
Sleigh Bells, meanwhile, released their third album, Bitter Rivals, back in 2013.