In Hollywood, where sporting a younger image appears to be a standard no matter what, several celebrities have often gone for various plastic surgery procedures to give themselves what are generally considered more desirable and youthful looks.

While most don't admit to undergoing any plastic surgery, several have opened up about procedures they've undergone-whether it was to a specific part of their body, their face or both.

Two stars who recently opened up about their plastic surgery procedures are The Big Bang Theory star Kaley Cuoco and Billy Joel and Christie Brinkley's daughter, Alexa Rae Joel. Alexa Rae recently turned heads when she appeared at a sold-out show at New York City's Café Carlyle on April 1. She appeared to be sporting a tighter face, larger bust and slimmer nose than she had in the past, sparking rumors of extensive plastic surgery. Though she admitted to getting a nose job in 2010, she slammed the rumors about other plastic surgery procedures, contributing her recent look to shedding baby weight through the years and stage makeup.

Cuoco admitted to having breast augmentation in the May 2014 issue of Cosmopolitan magazine, calling it the best decision she had ever made. She said she made the decision to do so while starring on 8 Simple Rules at 18 years old.

For more stars who have confessed to plastic surgery procedures, scroll through the photo gallery: