Harlow Madden is 'The Thinker'

15-month-old daughter, Harlow Madden, strikes a thoughtful pose while taking a walk with her mom, Nicole Richie, in Hollywood on Friday (May 1).

Nicole, 27 and partner, Joel Madden, are expecting their second child in late August.

On her official website, she recently blogged about her first music group, saying, “When I was 10 years old, I was in an all girl hip-hop/rap group. (oh we’re just getting started). Our name? get ready… CAUTION! It was me and my 2 girlfriends; but they were 13 so they made me audition. I was soooo excited when I got in! All I can think of is the 3 of us going up to my mom with a straight face and singing her our first song. We were dead serious. And I even remember part of our rap. I’m getting chills of embarrassment even typing this. The rap lyrics I remember were:

“Caution! Walking down the street.
You better watch out, and step to the beat
Playing our music from town to town
Rockin’ and Rollin’ were [sic] gonna get down!”

10+ pictures inside of Harlow Madden, the thinker…