Nigel Farage has accepted a proposal by the Telegraph, Guardian, and YouTube to take part in an live online debate to be streamed at the end of March.
In a statement, the Ukip leader said: "Scrutiny is an important part of democracy, and for this reason I am delighted to accept the invitation to this debate, so that I can make the case to the British electorate on why they should vote UKIP.
"I hope that the Prime Minister will muster up the courage to stand by his own words, and show up to try and defend his record in government.
"Mr Cameron has failed on nearly every pledge he made to the British public in 2010, and it is evident he’s afraid of butting heads with UKIP on immigration, the EU, our NHS, defence, education policy and more.”
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Ed Miliband say a Labour government would take legal steps to make sure leaders' debates a permanent feature in general election campaigns
Former Conservative Party chairman suggests a Tory-Labour grand coalition to stop the SNP holding the balance of power at Westminster.