A jury found that Michael Bolton ripped off portions of his hit "Love Is a Wonderful Thing" from a 1966 Isley Brothers tune of the same name.
The jurors will now decide how much Bolton should pay in damages for the copyright infringement. The verdict came on Monday.
"Love Is a Wonderful Thing" helped sell more than 10 million copies of Bolton's 1991 album "Time, Love and Tenderness."
Ron and Marvin Isley were delighted when they first heard the Bolton song playing in a furniture store, said their lawyer, John McNicholas. "They said, 'Michael covered one of our songs.' "
But when they checked the album in a record store, they found only Bolton and Andrew Goldmark listed in the credits. The Isleys sued in 1992.