(CBS Detroit) An uncharacteristically haggard Madonna took to the stage before a show by comedian-of-the-moment Amy Schumer and made an unusual promise.

And it was graphic.

"If you vote for Hillary Clinton I will give you a blowjob. Ok? I'm really good. I'm not a d***he and I'm not a tool. I take my time, I have a lot of eye contact and I do swallow."

According to Daily Mail, the audience went wild with applause.

Amy Schumer's brushes with politics have been a mixed bag. She recently had dozens of audience members walk out of a Tampa show when she insulted Donald Trump.

But she clearly has Madge in her corner.

We can't help but wonder, though, does the Material Girl's promise make one more -- or less -- likely to vote for Clinton?