Updated: Feb 4, 2013 at 11:15am

HOLLYWOOD, February 1, 2013, (LifeSiteNews.com) - Beyoncé Knowles, a world-famous singer, has given an interview stating that the loss of her first child while still in the womb in 2010 was the worst experience of her life.

According to US Magazine, Knowles gave the interview to HBO, which is making a documentary about the singer. She begins her account by recounting: "About two years ago, I was pregnant for the first time, and I heard the heartbeat, which was the most beautiful music I ever heard in my life."

"Being pregnant was very much like falling in love," Knowles said. "You are so open. You are so overjoyed. There's no words that can express having a baby growing inside of you, so of course you want to scream it out and tell everyone."

"I picked out names, I envisioned what my child would look like...I was feeling very maternal," the singer added.

However, the child soon died in her womb.

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"I flew back to New York to get my check up – and no heartbeat," the singer told HBO. "Literally the week before I went to the doctor, everything was fine, but there was no heartbeat."

She later decided to express her grief in a song, which she characterized as "the saddest song I've ever written in my life. And it was actually the first song I wrote for my album. And it was the best form of therapy for me, because it was the saddest thing I've ever been through." She does not specify the song nor the album.

The singer finally did give birth to a daughter in January of last year, whom she named "Blue Ivy."