Nick Clegg, David Cameron, Nigel Farage and Ed Miliband are presented as a spoof boy band in a new campaign video released by the Green Party.
The spoof, named "Change the Tune", shows the four major party leaders singing about their "shared love of austerity and fondness for fracking", the party said.
The opening verse shows an actor playing David Cameron at a piano, signing the line: "Have you ever wondered why I sound just like my deputy?"
The other three "leaders" then join in, singing: "It's sweeter when we all agree/A party political harmony."
The Greens say the video is intended to show that "for many years the Establishment parties have been singing from the same hymn sheet."
Leader Natalie Bennett - who was deemed worst performer in a poll following last week's debates - this week called on the electorate to "vote big and vote brave" at the upcoming election, claiming that it offers a "real alternative to business-as-usual politics".