President Barack Obama was the first person to learn Mariah Carey was expecting twins. Carey convinced her husband Nick Cannon to keep it a secret until the couple met the President and his wife Michelle at an official function last year. The dad-to-be tells “Access Hollywood,” “She was the one that was like, ‘Wouldn’t that be a great story to be able to share with our children that the first people to know that they were going to be people was the President and First Lady.’”