Pop star Pink picks fights with new husband Carey Hart to kickstart her creativity. The STUPID GIRLS singer struggles to write when she is too happy, but a quick spat with her beloved and she's ready to rock. She says, "It's much harder to write when you're in love. "You need to turn that off and go watch the news or talk to a friend, or have a fight; well, there are sides. "There is definite passion in our relationship, which always helps."