First lady Michelle Obama hasn't decided to write a White House memoir yet, but that hasn't stopped her admirers from readying their own appreciations. According to publishing insiders, several biographers are looking to cash in on the popularity of the first black first lady, and one written by Obama herself could fetch close to the $8 million Hillary Clinton received for Living History.In time for the Jan. 20 inauguration, Obama's last time on the presidential stage, the first of the many books debuts with an unusual collection of tributes to her brain, achievements and even her "big booty."