Katie Derham introduces the celebrations live from the Royal Albert Hall as the world's greatest music festival reaches the grand finale of its 120th anniversary year. Tenor Jonas Kaufmann, soprano Danielle de Niese and pianist Benjamin Grosvenor are the star soloists in a program which includes popular favorites by Gershwin, Lehar and James P. Johnson, as well as a performance of Grieg's Morning from Peer Gynt, which appeared in the first ever Last Night in 1895. Around the U.K., Proms in the Park audiences in Belfast, Glasgow, Swansea and London will join the Royal Albert Hall for a medley of favorites from The Sound of Music to mark the 50th anniversary of the classic film. Each of the four parks will also have their moment in the spotlight as part of a U.K.-wide singalong of Aaron Copland's I Bought Me a Cat, before the traditional climax of Rule Britannia, Land of Hope and Glory and Jerusalem. The BBC Symphony Orchestra and Chorus and the BBC Singers are conducted by Marin Alsop