Kathleen Mavourneen

It became her signature tune during concerts, and she sang it for Queen Victoria and over 500 royal guests during a performance at Buckingham Palace in June 1849.

"Kathleen Mavourneen" gained popularity with American audiences as a direct result of Hayes's international concert tours between 1851 and 1856.

The song plays a prominent role in Michael Shaara's American Civil War historical novel The Killer Angels and its film adaptation Gettysburg.

During Gettysburg, "Kathleen Mavourneen" is sung once by an Irish tenor at the Confederate camp[7] and thereafter is used frequently as a theme in Randy Edelman's musical score for the film.

Several silent films were titled Kathleen Mavourneen, the first such drama being produced in 1906 starring Kitty O'Neil, Walter Griswoll and H.L.