The former Destiny’s Child singer underwent the cosmetic procedure last October because she wanted to boost her modest bust.
Kelly said: “I went from an A-cup to a B-cup. I didn't want to have double Ds and be a little bitty size 2 - that would look nuts!
"I was sick of not fitting into my tops. There was this one really hot House of Dereon top - I just wanted to fill that out!"
The 27-year-old star is thrilled with the results and says she feels more confident with her new breasts.
Kelly added: "I put the top on and I looked so good! I'm so happy. I feel complete."
Although the ‘Work’ singer is pleased she had the operation, she warned her fans to consider all their options before having cosmetic surgery.
She said: "It is a decision I made for myself. I like it, and that's all that counts. For young people I would say think about it before you just jump off and do something you may regret later."
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