Austin Petersen, a current Republican Senate candidate from Missouri and former libertarian presidential candidate, has decided to use a new tactic to raise money for his campaign… and that tactic is karaoke.

Through Facebook Live streams, Petersen provides updates to his followers about fundraising efforts and promises to sing karaoke songs if certain goals are met.

Petersen has kept his promises on karaoke thus far. He can be seen singing everything from “I Want it that Way” by the Backstreet Boys to “House of the Rising Sun” by Animals.

Petersen claims the fundraising tactic started as a joke. His first karaoke promise was made to a closed group on Facebook of roughly 12,000 supporters.

“I was saying it to my support group, which is a closed group, and I said, ‘okay if someone gives me the maximum $2,700 donation right now I will do a karaoke live stream taking requests, full blown, five or six songs,’ and somebody did it.”

“They did a poll and voted and I did ‘Carry on Wayward Son’ first,” he added.

Last Wednesday, Petersen told his followers on his public page that he would sing “Great Balls of Fire” by Jerry Lee Lewis if he hit six figures by the end of the day. Soon after, his campaign reached $100,000 and Petersen kept his promise.

You can check out his performance on his Facebook page here.

The Petersen campaign’s next goal is to hit $250,000, and Petersen says “there will definitely be more karaoke” if they’re successful in reaching it.

Petersen hopes to defeat incumbent Democrat Senator Claire McCaskill in a state that overwhelmingly voted for Donald Trump by 19 points last November.

Petersen switched from the Libertarian Party to the Republican Party after weeks of calling supporters and asking for their opinion. He claims that he will be a Republican that supports liberty causes.

“I am running because I believe in liberty and I care very deeply about the principles this country was founded on and I want to inspire others to get out there and fight for our rights.”