Michelle Obama to sit for interview on Huckabee's Fox show

First Lady Michelle Obama will sit for an interview this weekend with potential 2012 GOP candidate Mike Huckabee.

Huckabee, a former Arkansas governor and 2008 presidential candidate, will interview Obama on her new campaign against childhood obesity to air on his program on Fox News.

The interview, Obama's first on Fox News, will air twice this coming weekend, on Saturday and Sunday at 8 p.m. EST both days.

Obama will appear to promote her "Let's Move" campaign, and will talk about life in the White House and other topics.

The subject of the interview will be close to the heart for Huckabee, who wrote a book about his experience losing massive amounts of weight before running for president.

Still, the interview will make for an interesting matchup between the First Lady and one of the top contenders to challenge her husband in 2012.