United Kingdom, Aug. 11 -- Anne Hathaway knows if she's having a boy or girl, but won't be telling anyone else.

The pregnant actress appeared on Jimmy Kimmel Live! on Monday night (10.08.26), where she was questioned about the tot's gender by guest host Anthony Anderson.

He said: "I consider myself to be a baby whisperer. Now, this is my first time seeing you pregnant and what not. It looks like it's a boy. Am I correct, or you're waiting?"

Anne gave a small smile as she replied: "We know [but] we're not saying."

The audience met the news with cheers, to which Anne admitted she always "feels bad" for not revealing the baby's sex when asked, adding: "Thank you for the support. It always feels so rude saying that," adding that she "feel...