Boyd will perform at a fundraiser for Sen. Claire McCaskill, where Obama will be in attendance. Obama is in town to whip up support for health care reform, the Post-Dispatch reported.

For those who aren't familiar with this huge locally generated talent, Boyd's the kind of guy who has great respect for the American political system, and he'll sing for politicians on either side of the political aisle. Boyd has performed in front of three presidents already -- Bill Clinton, George W. Bush and his father, George H.W. Bush. He's also performed before Missouri's U.S. senators and governors over the years, which earned him the title "The Voice of Missouri."

I talked to Boyd over the phone Monday. He couldn't disclose the location of Wednesday's private event, but he did say he'll sing about a 40-minute set, which will include his hit cover of Lee Greenwood's "God Bless the USA" and "Nessun Dorma," the opera piece that won fans over on "America's Got Talent" nearly two years ago. His win led to a $1 million prize, a major label recording contract and shows in Las Vegas.

"For some reason I keep getting myself in these situations, but it's a very proud position to be in," Boyd said about Wednesday's performance. "It's an honor to sing for the president, it really is, because it's the highest office in the country, and the guy's the leader of the free world."

Boyd called Obama's 2008 election "a moment for history." He said he looks forward to meeting Obama for the first time "and to shake his hand and tell him I'm praying for him."

Boyd told me he's next scheduled local performance will be on July 31, when he sings at Rep. Jo Ann Emerson's annual picnic event at Arena Park.

Boyd's debut album, "My American Dream," hit No. 3 on the Billboard classical albums chart when it came out in July and cracked into the Billboard 200.

For more on Boyd, visit his website.