Fit Fix: Jim Carrey and Hugh Jackman Face Off, Jon Stewart's Hosting SummerSlam, and NASA's Rover Takes a Selfie

Fit Fix: Carrey vs. Jackman

And all the other dude stuff you need to know today.

Morning, dudes. Here's the round-up in guy stuff for Friday, August 21. Happy weekend.

Sssssmokin!: Hugh Jackman and Jim Carrey are waging a very public (and hilarious) contest to impersonate each other's most iconic characters, because the Internet is a wonderful place. It started with Jackman doing his best attempt at The Mask...

 

#JimCarrey mate trying my best to do justice! Clearly, I should stay in my own lane.

A video posted by Hugh Jackman (@thehughjackman) on Aug 17, 2015 at 8:12pm PDT

But then Carrey responded with a self-portrait in Wolverine mode.

Nice move @RealHughJackman Now watch me make a meal out of your biggest role. ;^> pic.twitter.com/GUfHB2RR4L

— Jim Carrey (@JimCarrey) August 20, 2015

We're gonna give Round 1 to Carrey. ("Clearly, I should stay in my own lane," Jackman admits.)

Mars Selfie!: NASA's Curiosity Mars Rover took a selfie. Is it just us, or does the little robot sorta resemble Wall-E? [NASA]

Some Retirement: He just signed off The Daily Show after 16 years, but Jon Stewart is keeping his skills sharp by hosting WWE SummerSlam Sunday on the WWE Network. And in the meantime, over 100,000 people have signed a petition to have him host a presidential debate. #WeWantJon

The "Smart Drug" That Really Works: Modafinil was originally approved to treat narcolepsy, but it's also been clinically shown to improve learning and critical thinking—so no wonder college kids are starting to treat it like the new Adderall.

Man Buns of Disneyland: Some enterprising soul was paying attention to our survey about man buns, because now there's is an Instagram account called ManBunsofDisneyland, and it already has 20,200 followers.

Not so GOAT: In the same week he said he's the best QB in the NFL, Washington's Robert Griffin III suffered a concussion during a preseason game—a preseason game!—the team said.

Mad Max Tribute: Video warlock DevinSuperTramp is at it again, this time with a Mad Max tribute (waged with paintball guns and go-karts) that is just as thrilling as the original.

FINISH HIM: And if that wasn't violent enough for you, here's a gloriously gory, grisly, bloody and all-around violent video of what the Mortal Kombat "fatality" finishing moves would look like in real life, thanks to the guys at RackaRacka. We're not even gonna embed it. Here's the link.