First lady Michelle Obama is taking her campaign to get children to live healthier lives to late-night television, counting down the "Top 10  Fun Facts About Gardening" on the "Late Show" with David Letterman."

Here are the early clips provided by CBS offer a taste of the first lady's comedic prowess:

Drum roll please…

No. 7: "In his lifetime, the average American will eat half a radish."

No.  6: "The largest zucchini ever grown contained a Starbucks."

No.  5: "Later this year, the Supreme Court will finally rule on 'tomato' vs. 'tomahto.'"

The appearance comes as the first lady promotes her new book, "American Grown: The Story of the White House Kitchen Garden and Gardens Across America."

Michelle Obama has been making the rounds of talk shows in recent weeks to discuss her book, the White House kitchen garden  and the fight against childhood obesity. She's made appearances on ABC's "Good Morning America," "The View" and Comedy Central's "The Daily Show."

The show, which airs in full Tuesday night, marks the first lady's second appearance on the "Late Show." She last appeared on the program in March.