How Jennifer Hudson's Fiance Saved Her Life

How Jennifer Hudson's Fiance Saved Her Life

Jennifer Hudson recently sat down with NBC's Lester Holt for an exclusive interview set to air on Dateline, where the 30-year-old singer talked about everything from how her fiancé David Otunga saved her life on the tragic day her mother, brother and nephew were murdered, to her dramatic weight loss.

During the candid interview, Hudson recalled how her fiancé, wrestler David Otunga, literally saved her life on the day she tragically lost her family members. She revealed that she would have actually been in the house at the time her mother, brother and nephew were killed if it wasn't for a phone call from Otunga.

"I remember it like yesterday," she said about the day of the family tragedy. "And I was literally pickin' up my bags to walk out the door to go to my mother's house. And he called me, like, 'Can you come out here instead of going, you know?' And I was like, 'Okay, sure.' And that one decision, that one thing, I wouldn't be sittin' here."

MORE: Jennifer Hudson Talks Weight Loss, 'Shocking' Family Tragedy to Oprah

Hudson also gets candid about her dramatic weight loss.

"I was much heavier growing up. I was wearing, like size 22s or 24s and things like that," Hudson revealed about her previous size.

In fact her new book I Got This, out January 10, touches on her constant weight struggle which she's overcome through more than just diet and exercise -- she credits her success to a positive attitude as well.

"That's just how I look at things. Instead of second-guessing myself or doubting things, or even defeating myself before I even try. That's where this came from. You know what -- I Got This. That's why I wrote this book. It's like I wanna be that voice cheering others on you know. And if I got this, you got it too," she said.

Hudson's interview on Dateline will air Sunday, January 8 at 7 pm on NBC.