Mum's the word: Mariah Carey having twins?

Mariah Carey has fuelled speculation that she is having twins after referring to her baby as "they". 

The comments came during an interview on US TV show Extra.

The 40-year-old hasn't denied the double baby joy news although she's keeping quiet on the matter, saying: "I'm not telling anyone."

The singing sensation also spoke of her cravings during pregnancy.