The singer has revealed her former Destiny's Child band mate's mum played a big role in advising her to wait until she was absolutely sure before having surgery to enlarge her breasts - and she ended up waiting a decade.
Speaking to Shape magazine, she said: ''I wanted to get breast implants when I was 18, but my mom and Beyoncé's mom told me to really think about it first. I took their advice and waited 10 years.''
To make sure she was completely comfortable with how her body ''would feel'', the 'X Factor' USA judge wore padded bras to get an idea of how she'd be after the surgery.
She added: ''Once I felt ready, I tried on padded bras and walked around in them to see how it would feel.
''You have to know what you're getting, no matter what type of surgery it is.''
Kelly wasn't the only member of the former trio - completed by Michelle Williams - to have worries about her body.
Earlier this year, Michelle revealed while she was ''trying to gain weight'', Beyoncé thought her thighs were ''too big''.
She recently said: ''On the outside, we were poised and smiling. But behind the scenes we had issues.
''I was trying to gain weight, and meanwhile Beyoncé would say, 'I think my thighs are too big.' ''
The long-awaited fourth season of 'Peaky Blinders' debuts later this year, with Tom Hardy now confirmed to reprise his role as Alfie Solomons.
For the sci-fi horror thriller Life, Jake Gyllenhaal and Ryan Reynolds team up to play astronauts trying to contain an aggressive alien creature.
Deadpool creator Rob Liefeld says that the chemistry between Ryan Reynolds and Zazie Beetz in upcoming Marvel movie 'Deadpool 2' needs to be...
The British actress opened up about the disorder she's been battling since she was a teenager.
Tired of their men behaving like egotistical, sport-obsessed, womanising jerks, four interconnected women prepare to...
Hockey-masked Friday the 13th stalker Jason Voorhees and glove-toting Nightmare on Elm Street slasher Freddy...