It is yet to confirm if Olivia Rodrigo has had breast implants and plastic surgeries or not.
However, rumors have it that the singer has gotten breast implants and did some plastic surgeries to meet the beauty standards.
It might be true as she has gone through a significant change throughout a short period. Or she might have gone through puberty as she is only 18 as of 2021.
In an alternative scenario, Rodrigo might also photoshop her pictures which gets compared, and she might also have used makeup to life up her chest to stand out.