Jessica Simpson Accidentally Reveals Sex of Baby

Although she didn't mean to tell the world, Jessica Simpson is having a boy!

The singer and fashion mentor let it slip when talking about morning sickness on ABC's Jimmy Jaime Live Wednesday night.{}

Simpson realized what she said, then told the talk show host "Well, I guess I just told the world I'm having a boy."

Kimmel says the reveal wasn't planned, though he did try to get her to tell him the baby's name.

It didn't work.