Jealousy over the rising profile of Pussycat Dolls singer Nicole Scherzinger has led the girl group to break up, spies tell The Mirror. Kimberly Wyatt told the British tabloid the group are currently on a hiatus. “The girls and I have just finished our huge world tour and are taking a break from the band and doing our own thing,” the 27-year-old said. “We’re all concentrating on our own projects and deciding what the future will hold.”