President Obama and Mitt Romney will have their big showdown at the nation's polling places in November -- but in the meantime they'll enjoy a few laughs together.

The current Leader of the Free World and the presumed GOP presidential contender will appear on the "CMT Music Awards" on Wednesday in a comedic opening segment for the country music awards ceremony. Obama and Romney both contributed pre-taped cameos for the segment.

Also read: Obama and Hollywood: A Compendium [4]

This will mark Obama's second run on the CMT Awards. In 2008, then-candidate Obama and his political opponents, John McCain and Hilary Clinton, taped cameos for the opening segment of the show.

According to CMT, both Obama and Romney immediately accepted the opportunity.

“The President and Governor Romney each understand the reach of the CMT audience, particularly on our highest-rated night of the year,” CMT president Brian Philips said. “They’re each great sports, they’re ‘in on the joke’, and they each went out of their way to deliver great moments for CMT. Tune in at the top of the show or you’ll miss them!”

Also read: "Glee" Star Darren Criss to Sing for President Obama [5]

Both candidates have tested their comedic chops in a televised setting -- Romney has made two appearances on  "The Late Show With David Letterman" in recent months to read the Top 10 list, while Obama slow-jammed [6] the headlines on "Late Night With Jimmy Fallon" in April.

Time will tell which candidate delivers the funniest cameo -- and whether the segment will be as big a joke as modern politics have become.

The "CMT Music Awards," hosted by Toby Keith and Kristen Bell, air Wednesday at 8 p.m. ET on CMT and CMT.com.