The general election is a week today and party leaders are taking part in the final set-piece televised event of the campaign.
David Cameron, Ed Miliband and Nick Clegg will appear separately in a BBC1 Question Time election leaders' special. However it is not a debate as the three leaders will not be on stage at the same time and will not speak directly with one another.
Each will face 30 minutes of questions on a range of issues posed by a studio audience in Leeds Town Hall.
After agreement between the BBC and the political parties, Cameron will speak first, followed by Miliband, with Clegg finishing the show.
The programme is being broadcast live from 8pm to 9.30pm on BBC1 and BBC Radio 5 Live, and highlights will be repeated on the BBC News Channel at 9.30pm on Thursday and 8.30am on Friday.
You can also watch it live here on this page.
Later, there will be three special programmes broadcast on BBC1 in different parts of the UK, in which SNP leader Nicola Sturgeon, Plaid Cymru's Leanne Wood and Nigel Farage of Ukip will each answer voters' questions for half an hour. These shows will air at 9.30pm in Scotland, and 10.50pm in England and Wales.