Tony Shalhoub
Image via dailymail.co.uk

Working out or participating in strenuous physical activity has the ability to contort our faces in ways we couldn't replicate even if we tried. Something most of us have little to no control over, these are the best celebrity struggle faces out there.

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Taylor Lautner
Image via Menshealth.com

Remember, it's import NOT to breathe during your set

Scarlett Johansson
Image via dailymail.co.uk

Classic ScarJo 

Carrot Top
Image via Granades.com

Workin' hard, or hardly workin'?

Tony Shalhoub
Image via Dailymail.co.uk

Take the picture! Take the picture!

LeBron James
Image via Overtimeathletes.com

 Wait, those aren't proper lifting shoes

Dwayne Wade
Image via Bleacherreport.com

Wade be like, "duck face!"

Nelly
Image via Youtube.com

Where'd that top lip go?

The Rock
Image via Getmascular.blogspot.com

Miami

Joe Manganiello
Image via Getmascular.blogspot.com

Please note the Chucks.

Clay Mathews
Image via Apowerfulpursuit.blogspot.com

We expect nothing else from Clay.

Michael Phelps
Image via Muscleprodigy.com

He's a swimmer, cut him some slack

Paul Pierce
Image via paulpierce.net

Oh Paul.

Adrian Peterson
Image via Startribune.com

Majin Buu found a dragon ball!

Hugh Jackman
Image via ABCNews.go.com

Hugh Jacked-man

Ronnie Coleman
Image via Seanhyson.com

What in the hell is that smell?

Arnold Schwarzenegger
Image via Clearlakecf.squarespace.com

I'll be back...for another set...or 10

Michael Jordan
Image via Blog.xuite.net

Finally, something he doesn't make look easy

Mark Wahlberg
Image via Dailymail.co.uk

Check out that forehead vein

Dwight Howard
Image via NBAPremiumtv.com

The ultimate stink eye

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