Stephanie Hughes hosts the traditional celebration live from London's Royal Albert Hall, with Andrew Davis conducting the BBC Symphony Orchestra.
Highlights include the overture to Nielsen's Opera Masquerade, arias with a devilish theme sung by Willard White, the UK premiere of Esa-Pekka Salonen's Giro and Poulenc's Organ Concerto, with soloist Gillian Weir. Then, from 8.35pm, there are visits to Proms in the Park concerts taking place in London's Hyde Park, where Terry Wogan is the compere, Birmingham and Swansea.
(Coverage continues at 9pm on BBC1)
(The Albert Hall Prom can also be heard on Radio 3)
See today's choices
(Digital widescreen)
(Brian Kay's Pick of the Week: page 42; Stephanie Hughes, Face behind the Voice: page )