Singer allegedly used two of their songs.
US music duo Sleigh Bells have accused fellow American artist Demi Lovato of sampling their music without permission for her track Stars, featured on the newly-released album, Confident.
Taking to the band's Twitter account, guitarist Derek Miller accused Lovato of sampling two of their tracks, Riot Rhythm and Infinity Guitars.
"Demi Lovato flattered you guys sampled Infinity Guitars & Riot Rhythm for 'Stars' but we were not contacted. Gotta clear those," Miller tweeted.
While the tweet resulted in many aggressive responses from Lovato fans, the singer herself is yet to comment on Sleigh Bells' claims.
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.@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 the songs in question below.
The news comes in the wake of pop singer Taylor Swift also being accused of ripping off R&B artist Jesse Graham, who claims she stole lyrics from his own song for her hit track, Shake It Off.
Graham has filed a $42 million dollar lawsuit against Swift this week.