Nicole Richie and Harlow Madden held hands today on their way into Malibu's Labor Day fair. While they were checking out the rides and soaking up the sunshine, Joel Madden was off on his own adventure with his brother, Benji. The guys caught an early morning flight to Florida where Joel's scheduled to DJ at Miami's Fontainebleau tonight. It's been a busy Summer for the Richie-Madden family — Joel just wrapped up a global tour with Good Charlotte, and Nicole teamed up with Jessica Simpson on the reality show Fashion Star. Despite their busy schedules, Nicole and Joel still made time for date nights, routine trips to the gym, and fun family outings with the kids. Joel recently chatted with us at the MTV VMAs and shared sweet details about their family life. It seems he's not the only one with a natural talent for music. According to Joel, Harlow and Sparrow are picking up musical tips from dad, since she loves to sing and Sparrow's into playing the drums.