Floyd Mayweather visits the Ridiculousness studio where Rob shows him what a "Pain Face" looks like. They'll also endure some "Romantic Injuries" and learn "How Not To Train."

The episode was rated 7.69 from 75 votes.

UFC championship fighter, Quinton "Rampage" Jackson, shows his wolf battle cry and what really sets off his "Hot Button." Rob also shows videos of "Crappy Endings" and what it's like to get "Slampaged."

The episode was rated 7.71 from 66 votes.

To honor the season finale of Ridiculousness, Wee-Man and Preston Lacy take to the couch to watch and celebrate upon all the other jackasses in the world.

The episode was rated 7.73 from 45 votes.

Rob shows the audience how to "Escape Your Pain" while friend and pro championship skater, Chris Cole, learns what it's like to be in the "Hot Seat."

The episode was rated 7.74 from 42 votes.

Justin Bieber stops by the set to show off some of his Canadian pride, learn about "Humanimals" and what "Popcorning" is really all about.

The episode was rated 7.74 from 90 votes.

Actress and musical artist, Kat Graham, shows us some of her big moments of "One Liners" and how to dance on stage with one shoe. Rob also shows videos of her "Magical Spells."

The episode was rated 7.76 from 42 votes.

Drift racing super-star, Vaughn Gittin, Jr., reunites with Rob to watch videos featuring "Faulty Equipment" and "High Speed Chaos." Rob introduces instant classic categories such as "Flailers" and "Stunt Dummies."

The episode was rated 7.78 from 45 votes.

'Nitro Circus' stunt warrior Street Bike Tommy joins the 'Ridiculousness' gang to watch the wildest whisky throttles and gutsiest big dudes on the web.

The episode was rated 7.79 from 56 votes.

The original 'Ridiculousness' trio watch clips of "Random Tackles" and animals seeking revenge, and Chanel swaps places with Rob for some "Redneck Good Times."

The episode was rated 7.79 from 58 votes.

Former "PMOY", Sara Jean Underwood, visits the Ridiculousness set, where Rob shows off his "Fear Face" and they talk about how "Cats are Weird."

The episode was rated 7.82 from 79 votes.

Rob, Chanel, and Sterling educate the audience on how to "Save Your Drink," why "Safety Hurts" and see some "Chanels in Training".

The episode was rated 7.83 from 48 votes.

MTV host and BMX rider, TJ Lavin, stops by the set to learn about "Shirtless Manplay," "Flinstoning" and "Animal Prodigies."

The episode was rated 7.87 from 38 votes.

Lil Jon and Rob enjoy the "Yeah" category inspired by the rapper, watch videos of "Dancing Animals," unintentional "Body Shots," and people getting "Fenced."

The episode was rated 7.88 from 50 votes.

WWE Divas and Bella Twins, Nikki and Brie join the crew to show their "Backyard Wrestling" moves and how to make the perfect "Pain Angel."

The episode was rated 7.88 from 42 votes.

Tyler, the Creator and Loiter Squad co-star, Taco, visit the set of Ridiculousness and learn about "Sloppy Finishes" and "Faceballs."

The episode was rated 7.91 from 43 votes.