NICOLE RICHIE SHINES POST-PREGNANCY.

Just weeks after the birth of their son, Nicole Richie stepped out with Joel Madden to go out to a concert at The Roxy in West Hollywood, CA on September 25,2009. Nicole's post baby bump seems to quickly be shrinking back to her small frame.

She really looks great!! Sheesh, if I was her, I wouldn't mind popping out two babies or more -- she bounced right back so quikcly.

Image:MAC/Fame Pictures