"I'm a Mess" hitmaker was reported facing a copyright lawsuit over his Marvin Gaye's song, "Let's Get it On." This is his second lawsuit, and some reports suggest that Sheeran was accused of copying the 1973 song of Gaye for his successful hit, "Thinking Out Loud," which was co-written by Amy Wadge.

Ed Townsend co-wrote Gaye's 1973 song "Let's Get It On," and his heirs filed copyright infringement lawsuit against Sheeran in the Southern District of New York, Reuters reported. Representatives for defendants of Sheeran, Sony/ATV Music Publishing, and Atlantic Records about the issue haven't give any comments about the issue.

The filed lawsuit asks for damages to be assessed at a jury trial. It also contains complaint that a harmonic progression, melodic and rhythmic elements of "Let's Get It On" formed the structure of "Thinking Out Loud"

"The Defendants copied the 'heart' of 'Let's' and repeated it continuously throughout 'Thinking,'" wrote in the lawsuit. The singer's heirs also sued Wadge and the song's producer, Jake Gosling, and even Sony/ATV Music Publishing, Atlantic Records, and Warner Music Group.

This is not the first time that Sheeran faces a lawsuit. Before this lawsuit came, California-based musicians, who created the 2012 song, "Amazing," for "X Factor" winner Matt Cardle, sued "Give Me Love" hitmaker for $20 million over his hit song "Photograph" in June.

Last year, Gaye's family successfully won a case filed against R&B recording artists Robin Thicke and Pharrell Williams for copyright infringement over over their hit single "Blurred Lines," and they won a $7.4 million after the trial.

"Thinking Out Loud" video garnered more than 1.2 billion views on Youtube. It was the first song to be streamed more than 500 million times on Spotify, according to NPR. In the U.S., it reached No. 2 on the Billboard Hot 100.