Claus Ogerman (Klaus Ogermann, 29 April 1930 - 8 March 2016) was a German arranger/orchestrator, conductor, and composer, best known for his works with Billie Holiday, Antonio Carlos Jobim, Frank Sinatra and Diana Krall. Born in Ratibor, Upper Silesia (now Racibórz, Slaskie, Poland), Ogerman began his career with the piano. He is one of the most prolific 20th century arrangers and has worked in the Top 40, Rock, Pop, Jazz, R&B, Soul, Easy listening, Broadway and Classical music fields.