Sir Edward Elgar, Sir Michael Arne, Gustav Holst and Ivor Novello were all British composers. Elgar was a Romantic composer who wrote the popular 'Pomp and Circumstance' marches. Arne was an 18th century composer who wrote the popular song 'Rule Britannia'. Holst was a 20th century composer who wrote the suite 'The Planets'. Novello was a 20th century composer who wrote musicals such as 'The Dancing Years'.