A university student stepped in to play piano during a "La La Land" concert in Sydney after the original pianist fell ill.

Sterling Nasa was volunteered by a friend when composer Justin Hurwitz asked if there were any capable sight readers in the audience.

The performance at Sydney's Darling Harbour Theatre was described by an audience member as a completely unique moment in live entertainment.

AI-generated summary was reviewed by a CNN editor.

A 21-year-old university student stepped in to play piano during a performance of “La La Land in Concert” in Australia on Saturday, saving the show after the original pianist was taken ill.