The “Rhine Class” river ship, which embarked on its maiden voyage from Amsterdam on August 13, is set to be christened by Kaufmann during its call in Rudesheim, Germany on August 20.

The German opera star has travelled the globe performing on some of the world’s most prestigious stages and guests attending the christening ceremony will be given the opportunity to hear her perform Johann Sebastian Bach’s Air.

Edie Rodriguez, chief executive and president of Crystal, said: “It is an honour to have one of Germany’s most gifted and cherished talents christen Crystal Bach as she officially embarks on the Rhine as part of the Crystal fleet.

“Naturally, Anna-Maria’s remarkable career in classical music and passion for her chosen homeland are befitting for this stunning ship but, beyond that, her grace and internationally recognisable charm are representative of the elegance found aboard a Crystal river voyage.”

Crystal Bach is the first of four “Rhine Class” river ships to debut on the rivers of Europe and will sail 10 and 14-day voyages predominantly along the Rhine between Amsterdam and Frankfurt and Amsterdam and Basel.