Is Mariah Carey pregnant with twins?

London: Pregnant star Mariah Carey referred to her unborn child as ``they`` in an upcoming interview with Radio Disney, sparking rumours that she and husband Nick Cannon are expecting twins.

While discussing her new album Merry Christmas II You, the 40-year-old singer revealed she began recording the album after finding out she was pregnant, reports a daily.

"I just hope that they don’t turn out hating Christmas!" she joked to Radio Disney’s Ernie in a radio interview to be aired on Tuesday.

Carey, who has not revealed her due date, kept her bump well hidden during a performance at New York’s Rockefeller Centre.