Legendary popstar Madonna has offered oral s*x to anyone who votes for Democratic party presidential nominee Hilary Clinton in the coming US presidential elections.

The 58-year-old made the remarks on Tuesday night as she opened a show for a comedian, Amy Schumer, at Madison Square Garden.

Madonna said to the crowd, “If you vote for Hillary Clinton, I will give you a blow job,” adding, “And I'm good. I'm not a tool. I take my time.”

It is no secret that the pop icon is a supporter of Clinton, and this incident isn’t the first of bizarre gimmicks to pledge her support.

At the end of September, she posted a unclad selfie to Instagram, which has now been deleted. Wearing nothing but jewellery in the image, Madonna pledged her support for Clinton. She closed her caption with “unclad Voting series #1,” indicating that there may be more to come.

Also later, she posted an image of Clinton imposed between her legs, saying: ”Living For Hillary Yes I vote for intelligence. I vote for equal rights for women and all minorities. Women Run the World now they have to get out and start supporting one another. No more misogynist feminists! No more mysogony. Get out and Vote ”