Pop singing star Mariah Carey is sparking more pregnancy rumors, as she has reportedly scrapped plans for a new tour to prepare for her first child. Gossips have been talking about Mariah expecting since marrying Nick Cannon earlier this year, but she frequently refuses to confirm the media reports. And the rumors were sparked after insiders told the New York Daily News that the star had pulled all plans for an upcoming string of concerts because she is pregnant. A source tells the publication, "Costume designers and dancers were all called Wednesday and told the tour is off. "Most were hysterically crying because they were relying on her for a paycheck this holiday season." However, a representative for Carey refutes the claims: "I have not been told she's pregnant."