Singer Britney Spears accidentally confirmed that her friend and actor Zoe Saldana is expecting twins.

The 32-year-old pop star made the revelation during an interview with "Entertainment Tonight" Tuesday, reports dailymail.co.uk.

She broke the news when asked whether she would want to do another movie with her "Crossroads" co-star.

"Who knows? That's a very good idea. But she's pregnant with twins right now. So I'm sure she's got a huge future ahead of her,` she said.

The mother of two also offered her friend some advice.

`You're not ready. You don't know what you're in for,` she said.

Saldana recently revealed that she is pregnant when she took the ALS Ice Bucket Challenge last month.