Australian actress and singer Olivia Newton-John has filed a breach-of-contract suit against record label Universal Music Group, claiming she is owed more than $1m in royalties from sales of the 'Grease' soundtrack album.
Newton-John starred as Sandy Olsson opposite John Travolta's Danny Zuko in the classic 1978 film version of the Broadway hit.
She has received some money from the album, but alleges Universal have failed to make a number of contractual payments to her.
Universal responded by saying: "The lawsuit is without merit and, at the appropriate time, we expect that the court will dismiss it."
