ABC's Jon Karl shaves RNC spokesman Sean Spicer's head.

Bye bye, beautiful hair!

With the presidential election long behind them, two of the parties' top flacks joined forces in a show of bald bipartisanship Sunday on " This Week with George Stephanopoulos."

Thanks to a little buzz shear help from ABC News' Jon Karl, Democratic National Committee spokesperson Brad Woodhouse and Republican National Committee spokesperson Sean Spicer lost their locks on our show - and it's all for a good cause.

Before the election, the DNC's Woodhouse tweeted a bet to his Republican counterpart, Spicer. The deal: Whoever's candidate won the election would shave the loser's head, on national television.

But rather than let Spicer go bald alone, the pair decided to team up to support the St. Baldrick's Foundation, a national non-profit that raises money for childhood cancer research grants by shaving the heads of volunteers.

Woodhouse and Spicer suited up in their green hair-cutting capes - but before the fun began, our barber Jon Karl had a confession to make.

"I have never done this before," he said, holding a pair of buzz shears. "There is a safety on this thing, so no lasting damage will actually be done."

One buzz in, and there was no turning back.

"I'm good!" joked Woodhouse, as he pawed at his reverse mohawk. "We can comb it over."

The RNC's Spicer had the shorter hair of the pair, but his new 'do inspired some laughs nonetheless.

"If only Washington could cut spending like you cut hair," he quipped.

The St. Baldrick's Foundation has raised more money for childhood cancer grants than any other group, second only to the federal government, according to Lisa Parks, senior director of advocacy for the organization. To date, it's netted more than $101 million, and it's up to more than $33 million this year alone.

Spicer and Woodhouse might have set aside their political differences for charity's sake - but despite their twin chrome domes, the competition is still on. Now, they're fighting to see who can raise the most for the foundation.

As of air time Sunday, Spicer had received $5,045 for St. Baldrick's, with Woodhouse leading at $6,183 - and counting.

For more information, or to donate to the St. Baldrick's Foundation, check out Spicer and Woodhouse's fundraising pages.