Marvin Gaye's estate is once again at the center of a plagiarism lawsuit involving the legend's music.

The suit alleges that Ed Sheeran knocked off Gaye's classic soul track "Let's Get it On" with his recent hit "Thinking Out Loud."

Sheeran's chord progression closely matches that of Gaye's track and a suit has also been filed by Gaye's co-writer on the song.

"The Defendants copied the 'heart' of 'Let's' and repeated it continuously throughout 'Thinking,'" the lawsuit said, according to the news agency.

"The melodic, harmonic, and rhythmic compositions of 'Thinking' are substantially and/or strikingly similar to the drum composition of 'Let's.'"