Woken up in a miserable mood? Can't imagine you're likely to crack a smile any time soon? We beg to disagree! In fact, we guarantee you'll be chortling along with these two babies within seconds of starting to watch the video above.

The eight-month-old twin girls were filmed having a whale of a time in their exercise jumpers by YouTuber Melinda Redman. We're going out on a limb here - but we'd hazard a guess Melinda's their mum (as opposed to a chancer with a video camera who just happened to be wandering through the family's living room).

Ah, it all looks like such good fun, doesn't it? We kind of wish we could have an adult version of the "double-jumper" installed in our office. You know? Just to lighten the mood when things get a bit stressful...

Want more laughing babies? Coming right up!

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  • That Couch Must Be Comfy

    via <a href="http://www.girlsgonechild.net/2012/01/from-vault-fable-laughing.html" target="_hplink">Girl's Gone Child</a>

  • Tearin' It Up

  • You Sneeze, He Laughs

  • A Baby's Best Friend

  • Golf Has Never Been So Entertaining

  • Twinsies!

  • Baby Meets RoboRaptor

    Adorable baby meets roboraptor for the first time after Christmas.

  • Sneezing is funny to babies

    My baby Mitchell laughing at some pretend sneezing.

  • Laughing at Grandma :)

  • Micah's First Belly Laugh

  • Micah's First Belly Laugh

  • Micah's first belly laugh

  • Baby Delilah laughing at dog May 4th, 2011

  • Balloons are so funny!

  • Sadistic Baby

  • Sneezing is funny to babies

    My baby Mitchell laughing at some pretend sneezing.

  • Airplane Carrots!

    Daddy has to find creative ways to keep Leo interested in his carrots!

  • harassing the dog

    Oscar laughs every time his Dad throws a toy at grandma's dog.

  • Bouncing Top

    Oscar laughs as his dad makes a top jump by pounding his fists on the table.

  • Baby in Bath Laughs Hysterically (Super Cute)

    Griffin loves falling water. And he loves the sponge. Put those two things together and what do you get? A sidesplitting laugh-a-thon. If you're a baby, that is.

  • Baby in Bath Laughs Hysterically (Super Cute)

    Griffin loves falling water. And he loves the sponge. Put those two things together and what do you get? A sidesplitting laugh-a-thon. If you're a baby, that is.

  • VID01336.mp4

    Laughing at Grandma :)

  • Jack's First Belly Laugh-8 months

    Jack's first belly laugh at luke skywalker/tommy boy joke

  • BABY FOOD LAUGHS

    Baby enjoying homemade baby food - kale, green beans & potatoes!

  • Viktor Laughing

  • Toddlers Laughing as They Devour Cake..

    2 Year old Havoc and his friend Ella are busting up laughing as they devour a cake they made out of candy.. Got love them!

  • Toddler Figures Out Webcam..

    2 year old Havoc has figured out how to use the webcam on his family computer and is having a blast talking to himself!!

  • Riu Baby vs Parrot

    Riu Baby vs Parrot

  • Riu LOL

    Riu LOL

  • Riu Baby vs Parrot

    Riu Baby vs Parrot

  • Baby Riu Laughing (new Ride on)

    Baby Riu Laughing (new Ride on)

  • Riu Dino

    Riu Dino

  • Dad scares baby, cute laughing, & then non stop hitting himself in the head

    Dad scares baby Sam to make him laugh and ends up with repetitive self inflicting pain.

  • Cute baby laughing

  • This turtle is hilarious

    Baby laughs at turtle, Daddy laughs at baby

  • This turtle is hilarious

    Baby laughs at turtle, Daddy laughs at baby

  • Laughing baby

  • Phoebe - Beatbox - Laughing

    Daddy beatboxing with Phoebe on his lap. She thinks it's hilarious.

  • Hilarious Baby Phoebe - Night Dance Party

    Now that Phoebe is six months we noticed she moves and dances a lot at night. So we created a funny video of her dance moves

  • Gav Laugh

    One of the most infectious laughs on the planet.

(Via Twentytwowords.com)