James Arthur has made a hell of a comeback with his new song Say You Won't Let Go after a few good years out of the spotlight.
However, things have gone from sweet to sour as he has been accused of plagiarism.
His track may be riding high in the number one slot for the third week running, but Irish band The Script are reportedly preparing to sue the X Factor star for similarities between his single and one of theirs.
The band, fronted by Danny O'Donaghue, believe James' song is a rip off of the number two hit single The Man Who Can't Be Moved.
So, they have hired someone to work out whether James' single is a copied version of theirs.
A source told The Sun: "This is devastating for James.
"He has pulled off one of the most incredible music stories of the year by re-signing with Simon Cowell and getting to No. 1 for three weeks in a row.
"Say You Won't Let Go is already one of the biggest singles of the year so this is a real hammer blow.
"James has just got on the straight and narrow after a difficult few years and a lawsuit is the last thing he needs."
"There is no doubt the songs sound alike and have a similar chord progression.
"It will be interesting to see what happens next.
"James has just got back on the straight and narrow and a law suit is the last thing he needs."
Do the songs sound the same? Have a listen and tell us what you think.