Breaking Down the Hit: The Production of Chris Brown's "Run It!" Despite Brown's insecurities, he brought his A-game whenever the team met to record "Run It!" Chris Brown's "Run It!" is Brown's biggest Billboard hit, which isn't surprising since it was the singer's "longest-running No. Setting the Stage for a Decades-Long CareerThe release of Brown's first song, "Run It!," marked his career launch and laid the groundwork for the singer's success.