With recent confirmation that Mariah Carey and husband Nick Cannon are expecting their first child, the question “How old is Mariah Carey?” has been spreading throughout the internet.

Mariah is one of the world’s all-time best-selling artists, reaching over 200 million sales via her albums, singles, and videos. Throughout the 1990′s she was considered an international superstar and quickly rose to the top, selling more albums than any other artist by the end of the decade. She married 28-year-old Nick Cannon in 2008, shortly after leaving Columbia Records executive Tommy Mottola.

So, how old is Mariah Carey? The newly confirmed mother-to-be is 40.

She was born on March 27, 1970.