Konstantine Lois and Shane Williams say they wrote a song called “Loveless” in 2015 for Williams’ musical group American XO. Now, they’ve sued Halsey, Khalid and Blanco, alleging their 2018 smash hit, “Eastside,” is basically a carbon copy of their own song.

According to documents obtained by TMZ, Lois and Williams are suing for copyright infringement and are going after not only the above-mentioned artists, but also Ed Sheeran, who’s credited as a songwriter on “Eastside,” as well as the labels who distributed it. They say the similarities are obvious to their ears.

The pair alleges that there are virtually identical note dyads, note intervals, similar tempos, and an all-around familiar beat – and point to interviews Blanco gave that they say support their case. In a Vibe article, Blanco is quoted saying he listens to 10 to 12 new artists every day in hopes of finding inspiration for ideas he could try himself. Based on their lawsuit, Lois and Williams seem to believe Benny stumbled upon their song somehow – which was streaming at that point – and then allegedly lifted parts of it for “Eastside.”