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Mary-Kate Olsen and Olivier Sarkozy - A very awkward public display of affection.

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Tom Cruise and Cameron Diaz - During filming for 'Knight and Day,' Cameron looked super comfy riding this motorcycle... not.

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John Travolta and Scarlett Johansson - We're guessing this wasn't part of the script.

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Britney Spears and Demi Lovato - While autographing cement at the launch of the second 'X Factor' season, Britney seems to have forgotten how to spell her own name.

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Megan Fox - The actress takes the lead and supports director Michael Bay at the 'Transformers' premiere.

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Fergie - Her husband at the time, Josh Duhamel, made sure his wife looked impeccable on the red carpet.

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Gabourey Sidibe - Wet and grumpy holding an umbrella. Wait, isn't that what assistants are for?

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Will Smith and Magic Johnson - Two legends sharing an inside joke.

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Hugh Jackman and Nicole Kidman - When a kiss on the cheek almost takes a turn for the worse.

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Prince Harry - Harry was planting a tree during an official royal engagement, but he looks like he did something naughty!

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Prince Harry - Trying to mingle with the locals during his world travels.

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Cara Delevigne - The model making funny faces is just another day of work for this photographer.

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Cara Delevigne - Hopefully her face doesn't freeze like that...

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Kerry Washington - No one told Kerry that she'd have to be careful with this dress if she didn't want to end up face down on the floor.

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Jennifer Garner - That was so close!

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Amy Schumer - The comedian wasn't so lucky.

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Jon Hamm - He probably didn't imagine this happening when he was practicing his speech for the Emmys.

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Emma Stone - Emma's reaction to Naomi Watts's slip is priceless.

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Jennifer Lawrence - Reminiscing about that time she fell at the Oscars.

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Jennifer Lawrence - Wait, here it is! The infamous moment Jennifer fell on the way to accept the Oscar for Best Actress.

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Katherine Heigl - Betrayed by the dress! She should have worn those 'Grey's Anatomy' scrubs, right?

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Madonna - She's just like any other human being.

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Kim Kardashian - The funny moment Chrissy Teigen photobombed Kim Kardashian's selfie!

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Christina Aguilera and Hillary Clinton - Eyes up here, Mrs. Clinton!

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Tom Cruise - Tom doesn't let the rain stop him from taking selfies with his fans.

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Ralph Fiennes and Rachel Weisz - Their expressions couldn't have been more different. Did Rachel spot something Ralph didn't?!

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Warren Beatty and Annette Benning - The umbrella arrived a little too late...

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George Clooney - Clooney is one of the most spontaneous Hollywood stars!

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Barack Obama - Many of the former President of the United States' expressions became viral memes.

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George Clooney - At the Toronto Film Festival. Why so serious, right?

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George and Nick Clooney - A cute family moment shows Daddy Clooney helping son George with his tie.

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Brad Pitt - Even the most beautiful man in the world can't keep a straight face all the time.

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Cate Blanchett - The actress failing to convince everyone that she is as mean as Lady Tremaine. She played Cinderella's stepmother in the movie.

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Doug Jones and Connor Jessup - The 'Falling Skies' stars goof around at an event.

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Doug Jones and Connor Jessup - But they really love each other!

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Tina Fey - She must be thinking, 'why did I wear this dress again?'

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Jodie Foster - Demonstrating how to make a killer entrance.

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Javier Bardem and Josh Brolin - The actors take a BFF selfie.

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Ben Affleck - 'What do you mean I have to sign that part of your body?!'

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Antonio Banderas - The actor laughs as he walks alongside his then wife Melanie Griffith and daughter Estela del Carmen.

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Alastair Campbell - Actor Peter Capaldi, who'd later get the role of Dr. Who, makes fun of Tony Blair's Press Secretary while he's on the phone.

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Celine Dion - The pop star is a pro at everything, including making faces!

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Billy Crystal and John Goodman - When your friend ruins that cute picture you're trying to take.

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Lewis Hamilton - The F1 racer makes fun of his colleague Nico Rosberg during an interview.

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Gerard Butler - The actor clearly takes his press events very seriously.

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Jennifer Lopez - Unexpected paparazzi are the worst.

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Mel Gibson - 'I swear I caught that snake with my own two hands!'

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Hellen Mirren -

Isn't it so annoying when you run out of space for your awards?

See also: The weirdest royals throughout history

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