Michelle Obama will appear on Jay Leno's late-night talk show on January 31, NBC said Thursday.

NBC said the show will be the first time the First Lady appears on any late-night television talk show.

Obama will discuss her fitness campaign "Let's Move," aimed at fighting obesity in children. She will also talk about her upcoming book about the White House kitchen garden.

Obama appeared on Monday on Nickelodeon's "iCarly." She has also appeared in "Sesame Street," and the "Oprah Winfrey Show."

She did appear in a late night show in 2008 but Barack Obama wasn't elected President yet.

Tags: Jay Leno