When it comes to looking good there is no denying that celebrities are under a great deal of pressure. It seems like every time they step outside their adventures are captured by paparazzi. Not to mention all the selfies that some celebrities tend to take!

Part of the way that some celebrities have handled the pressure is to physically augment something on their body. Sometimes it goes really well and the public makes sure to let their opinion heard, but sometimes it doesn't and the public reaction tends to be even louder.

Below we have the 8 best, and 8 worst body transformations that people from Hollywood have undergone. Whether it's altering something on their face, chest or as one star says - everything but her cheeks -, we're sure you'll be left entertained.

Worst - Tara Reid

One of the worst things a celebrity can experience is a wardrobe malfunction. Especially if that wardrobe malfunction comes on the backs of a plastic surgery that you know has left you looking less than your best.

And trust us, Reid knew her botched job (which included getting the wrong size) wasn't a good look

"I was on the Web sites as having the ugliest boob job in the world, guys I was dating would be like, ‘What’s wrong with them? They look really bad. You know, you should really get them fixed.’ [It’s so] embarrassing. I mean, you definitely need to turn off the lights, that’s for sure.," said Reid.

Yikes! It only takes one guy to physically ask to turn the lights off in bed to forever impact your confidence.

Best - Iggy Azalea

Iggy Azalea is no stranger to fans and critics commenting on her body. So when she decided to physically alter it with plastic surgery, she decided she may as well come out and own it

"It's no easy feat to live with your flaws and accept yourself—and it's no easy feat to change yourself. Either way you look at it, it's a tough journey. There are things that I didn't like about myself that I changed through surgery. There are other things I dislike but I've learned to accept," said Azalea.

Among the things that Azalea has openly said she altered includes her chest.

Worst - Heidi Montag

One of the biggest reasons as to why celebrities may get the reputation that they ruined their good looks, is if their plastic surgery leads to a body that looks very out of proportion.

Such as is the case with Heidi Montag who despite having a relatively small frame, thought it was a great idea to jump up to F sized boobs.

"For the past nine months I have not been able to do laundry, or look after my dogs or clean my house and I have had to stop working out because my injuries are so severe I cannot even do simple things like rowing or running," said Montag in a past interview.

She thankfully reduced her size in 2013. Including her breasts, Montag admitted she has undergone 10 different surgeries.

Best - Ashley Tisdale

When it comes to reasons to go under the knife, Ashley Tisdale has perhaps the most valid when explaining her nose job

"I didn't do this because I believe in plastic surgery. I did this to help my health. I literally almost could not breathe out of the right side of my nose. I want my fans to know the truth. I'm not someone who is going to act like I had nothing done. I just want to be honest because my fans are everything to me," said Tisdale.

Call us crazy, but being able to breath properly is definitely something that isn't overrated!

Worst - Victoria Beckham

Victoria Beckham has had an outstanding career as a model and you'd be lying if listening to some Spice Girls wouldn't improve your day (even just a little bit!). And if you disagree, you're welcome to give it a shot after this article!

But when Beckham was asked back in 2014 what she wishes she could do differently, she was quick to point out the alterations she had done to her chest over the years

"I should probably say, don’t mess with your boobs. All those years I denied it – stupid. A sign of insecurity. Just celebrate what you’ve got," said Beckham.

Best - Nikki Bella

While Nikki and Brie Bella may have been considered two of the most attractive twins, Nikki's decision to alter her body definitely made it a lot easier to tell the two apart!

“On my time off I went and got my own set of ‘Twin Magic’. If the Bella Twins weren’t enough, I wanted my own twins," said Nikki when talking about her enhancement.

Nikki also recently made headlines after John Cena proposed to her in the middle of the ring at WrestleMania 32.

The two had been dating since 2012 meaning that Cena has seen Nikki both before and after her enhancement!

Worst - Courtney Stodden

Now we're not going to be the only people who look at Courtney Stodden and stick her on the negative side of this list. But we do believe in being fair and when Courtney was asked about the numerous plastic surgeries she has undergone, she did say she loves it

"So obviously I know that some people will have a problem with saying 'Oh, you're like a sex object, how could you do that to yourself?' People are going to judge somebody regardless...I'm happy with the way that I look," said Stodden.

Stodden who was 16 years old when she married her then 51-year-old partner Doug Hutchison who awkwardly has also come out and said he prefers a more natural looking woman.

That may be one of the many reasons as to why the two separated in early 2017 but are reportedly still living together.

Best - Kaley Cuoco

Kaley Cuoco is used to people checking her out on a regular basis on Big Bang Theory. And prior to that she also rocked out in other roles like 8 Simple Rules.

While you may not have a favorite feature that helps make Cuoco one of the best looking celebrities if you ask her she may be quick to point out her chest - which she says is far from natural

"Years ago I had my nose done. And my boobs — best thing I ever did. Recently, I had a filler in a line in my neck I’ve had since I was 12. As much as you want to love your inner self…I’m sorry, you also want to look good," said Cuoco.

Worst - Lil' Kim

When it comes to shocking entries on our list, none may get your attention more than the physical change that Lil' Kim has undergone. Especially because along with significantly altering parts of her face, it is abundantly clear that she has also been messing with her skin tone

“She’s probably used chemicals, which contain very high doses of acids, on her face, combined with high-acid creams to lighten her skin," suggested one plastic surgeon when talking about the change.

With such a drastic physical change, you can only hope that Lil' Kim is feeling more confident with the person she is waking up as today than the person she was a few decades ago.

Best - Ariel Winter

While there are some celebrities on our list who looked at their chest and elected to go bigger (for better or worse results), Ariel Winter knew that she needed to go the opposite way.

"My surgery got a lot of criticism from some people, but I’m happier for it. I was uncomfortable and unhappy. I chose surgery because of how I felt, not because of what anyone else thought," said Winter.

It was reported that Winter went from a size 32F down to a size 34D. When you consider nearly every scandalous post she has goes viral, we're sure there is no shortage of fans who'll love checking out Winter this summer.

Worst - Jennifer Grey

When it comes to Jennifer Grey there is no need to talk about if the plastic surgery she underwent was a positive physical change. Because when she decided to change her nose, Grey said

"I went in the operating room a celebrity—and came out anonymous. It was like being in a witness protection program or being invisible."

Which as you can understand is pretty important for an actress. While Grey will perhaps always have a place in your heart with Dirty Dancing - a poor nose job helped ensure that would be the only thing she was known for.

Best - Chrissy Teigen

Chrissy Teigen is one of the best looking models in the world. Not to mention she is married to an outstanding musician in John Legend. And while you may not be able to wait until she hits up the beach this summer, you may be surprised to hear that Teigen's body is one that is very much shaped by plastic surgery.

"Everything about me is fake except my cheeks. I’m not shy about talking about that kind of thing. I have no regrets," said Teigen.

We're sure Legend is going to have no problem continuing to support Teigen's plastic surgery in the future if it's something she chooses to do.

Worst - Katie Price

It's not going to take long for you to notice that Katie Price has spent some serious time under the knife. When she decided to alter her face even more in 2015, her fans even spoke out hoping that she would finally realize enough is enough!

Price, who is a professional model, entered into the industry with the size 32B but by the time she was done she had undergone 7 breast alterations (not to mention her obvious face work). Perhaps thankfully her last decision in 2014 led to her getting her size reduced back down to her original size of 32B.

We're sure her chest looks significantly different than the one she started out with though!

Best - Stephanie McMahon

Stephanie McMahon is no stranger to being in the spotlight. Being the daughter of Vince McMahon and then marrying Triple H aren't exactly low-profile things.

Which also means that when Stephanie decided to enhance her breasts, the world quickly took notice. But the only thing that matters is that Stephanie is happy with her decision, saying in an interview

"At one point in time I was heavier and then I had lost some weight and I didn’t like the way I looked and I wasn’t confident in how I looked. And so it was my own personal decision to have that done and I was proud of what I did," said Stephanie.

We're sure if you don't think she looks hotter, you definitely aren't going to be saying so to Triple H!

Worst - Julia Roberts

There are plenty of reasons as to why people may regret getting Botox surgery. Such as you know, losing the ability to show off some emotions in your face - which Julia Roberts got to feel first hand

"I tried the Botox one time and was permanently surprised for a couple months and it was not a cute look for me. My feeling is, I have three children who should know what emotion I’m feeling at the exact moment I’m feeling it. Like, that is critical,” said Roberts in a past interview.

We give Roberts credit for being confident enough to come out and say the procedure didn't work for her.

Best - Jillian Michaels

Jillian Michaels is a world famous professional trainer but no matter how much time you hit the gym, there are some things about yourself that you cannot change. For Michaels, that "thing" was her nose - at least until she elected to undergo plastic surgery

"I had my nose done when I was 16 years old. And I'll be honest, it did change my life," said Michaels in a past interview.

While her nose is the only part that Michaels has come out and said she has altered, at the very least the fact that it was a positive story means that it may not be the last time you see her going under the knife.