From breast implants to nose jobs, here's 9 famous faces who kept their alterations a secret. And it turns out, quite a lot of our favourite stars — including Blake Lively, Jennifer Aniston and Sarah Jessica Parker — have gone under the knife in secret. However, despite admitting she wasn't totally convinced by the process, Geri hasn't ruled out ever trying it again. Mary Kate-Olsen Looking considerably different from her photo compared to now, the fashion designer has made sure she's no longer an identical twin. Experts are unsure of exactly what the actress has had done but some suggestions include a brow and cheek lift.