Beyonce kept dad in the dark over pregnancy

The 'Formation' singer revealed on her Instagram account that she and husband Jay Z are expecting twins.

FILE: Beyonce attends the 'China: Through The Looking Glass' Costume Institute Benefit Gala at the Metropolitan Museum of Art on May 4, 2015 in New York City, wearing an outfit by Givenchy. Picture: Getty Images/AFP.

LOS ANGELES - Mathew Knowles only found out his daughter Beyoncé was pregnant with twins after she posted the news online.

The Formation singer revealed on her Instagram account on Wednesday that she and husband Jay Z - who already have five-year-old daughter Blue Ivy together - are expecting twins and the news came as much of a shock to her father Mathew Knowles as it did her fans.

Mathew, who teaches entertainment industry courses at Texas Southern University, explained on The Insider: "I was shocked. Let me tell you what happened. I got a first text, and I was like, 'Why is this person saying congratulations?' Then I get a second text from one of my students at Texas Southern, and I was like, 'What are you talking about?' He was like, 'Go to the web.' I didn't know myself."

However, once he heard the news, Mathew - who used to be Beyoncé's manager - quickly called his daughter and they had a "wonderful" chat.

He said: "I was like 'B,' [and] she said, 'Hi, Dad.' I was like, 'You're OK?' Because she sounded a little tired because she's working on the Grammy performance.

"We just had a wonderful daughter-dad conversation. [But] I'm not gonna tell you all of that...

"Beyoncé and I had a great conversation. I'm looking forward to seeing her soon and I told her, 'Look, slow down a little bit. You need to slow down a little bit.' "

And now the news is out, Mathew couldn't be more excited.

He said: "I'm extremely, extremely proud and happy, both with Jay and her. And Blue Ivy is gonna have some brothers and sisters. Blue Ivy is already excited."

While he was kept in the dark about his daughter's happy news, the patriarch thinks the way the singer made her announcement was "smart".

He said: "That was very smart that she did it rather than someone else, [like] the media, doing it. So I think that was a really smart move on her."