Weight gain: Beyonce told Oprah she gained almost 60 pounds while pregnant with baby Blue
This would mean that Beyonce, doubled the amount - and yet she never looked that big.
But she told Oprah that she did gain that much, and that she had a shock when preparing to do a show just three months after Blue, one, arrived.
'I did a show three months after giving birth, which was crazy,' she said laughingly. 'I had clearly never given birth, and I didn't know that I would gain 60 pounds - 57 pounds.'
The singer talks candidly about her relationship with her husband Jay-Z.
'I would not be the woman I am if I didn't go home to that man,' the Crazy in Love singer told the chat show behemoth.
She also opened up about severing her professional relationship with her father in 2011.
Two years later, Beyonce Knowles is opening up about 'letting go' of her father and former manager, Mathew Knowles, in a candid new interview with Oprah Winfrey.
The 31-year-old singer sits down with the television mogul for Oprah's Next Chapter, revealing how she's mended their relationship.
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Shock: Beyonce told Oprah she had a lot to contend while preparing for a show three months after giving birth
Aha! Beyonce Knowles sits down with Oprah Winfrey for a candid interview airing on OWN this Saturday
The energy becomes more serious as the television host questions her once fractious relationship with her father.
'Talk some about letting your father go as your manager,' Winfrey asks, the clip cutting to Beyonce nodding as she contemplates a question.
Mathew, and Beyonce's mother Tina, played a pivotal role in Beyoncé's career.
Contemplative: Beyonce takes a moment to forge an answer to one of the television host's intimate questions
Serious: The 31-year-old singer volleys through a range of emotions in a 30-second clip of the interview released by OWN
VIDEO I gained 57lbs! Beyonce on her baby weight...
VIDEO I made him wait! Beyonce on Jay Z...
Twenty-one years later, in 2011, she ended their professional relationship, while relaying that their personal relationship remained full 'of love'.
Rumours circulated about more going on behind-the-scenes than Beyonce let on as Mathew and Tina headed for divorce.
Ties were after all not easy to sever with Mathew having producer credits on many of his daughter's projects and serving as the founder of Music World Entertainment, a label that, through Columbia Records, has released albums by Beyoncé, sister Solange Knowles, Sunshine Anderson, and former Destiny's Child members Kelly Rowland and Michelle Williams.
'I would not be who I am without him': Beyonce opened up about her love for Jay-Z
'It took a while for me and my dad to have an understanding', she once said.
'When I turned 18 and started handling my business more, he went into shock. And we had our issues. I'd say "No" to something, and he'd book it anyway.
'Then I'd have to do it because I'd look bad [if I didn't]. We would fight sometimes, and it took about two years, to when I was 20, for him to realise, "Oh, she is an adult now, and if she doesn't wanna do something, I can't make her do it."'
The women will also apparently touch on the miscarriage Beyoncé kept private for years, her husband, Jay-Z, and their baby daughter, Blue Ivy.
The premiere: Beyonce and Oprah Winfrey speak onstage at the HBO sat down on stage at the Ziegfeld Theater in New York City on Tuesday, ahead of the premiere of her new documentary, Life Is But A DreamThe couple married in 2008 but have been notoriously tight-lipped about their relationship.
Since the birth of their first child in January 2012, Beyonce has slowly opened up about her home life.
In a more light-hearted moment, Winfrey asks: 'When you get to the point when you can say, on camera, "I'm going to make love to my husband... How big is the Carter family going to expand to?'
'Lord, I'm gonna have me a time,' she says in another clip as the video cuts to the next question.
The women also talked about Beyonce's new HBO documentary, Life Is But A Dream.
Father and daughter: Beyonce, pictured with her father, Mathew Knowles, in 2007 - four years before she would fire him as her manager
The HBO film shows footage of a sonogram, Beyonce's growing bump and grainy video of herself posing nude as she neared her due date.
She also opens up about the miscarriage kept secret from the public until Jay-Z referred to it in his song Glory, released after their daughter's birth.
In the documentary, Beyonce touched on the topic briefly, saying, 'It was the saddest thing I've ever been through.'
Tragic: Beyonce opens up about her heartbreaking miscarriage for the first time in the forthcoming film
Baby bump: She also reveals the baby bump she had while she was pregnant with her daughter Blue Ivy
Baby's first picture: The singer even shared a sonogram that was taken while she was pregnant
Beyonce has also announced a new album for this year.
The Mrs Carter Show World Tour - Jay-Z's real name is Shawn Carter - will kick off in April with more than 40 performances in Europe and North America.
Life is But a Dream airs on HBO on Saturday, the same day as Beyonce's interview with Oprah Winfrey on the OWN cable channel.