Dancing With the Stars First Look: You Have to See This Photo of Len Goodman Dressed as a Famous Rapper

Exclusive! LMFAO frontman Redfoo is serving as the ABC reality hit's guest judge and Len Goodman decided to dress up as the rapper

Let's get this party started!

The Dancing With the Stars ballroom is turning into TV's hottest party on tonight's show as it's "Party Anthem Night" and everyone at the ABC reality hit is embracing the theme. Even notoriously icy judge Len Goodman!

We've got an exclusive photo of Goodman dressed up as Redfoo, the LMFAO frontman who will serve as the night's guest judge. Um, best picture ever or best picture ever?!

In the hilarious snap, DWTS' head judge is rocking a wig and a shirt that says "Let's get ridiculous." Who ever thought's they'd see Goodman party rocking?

Tonight's episode will kick off with a spectacular opening performance, choreographed by Derek Hough, before the eight remaining couples  dance to some of the best party anthems of all-time...before one pai is eliminated. Talk about a buzzkill.

Redfoo is just the latest celeb to serve as a guest judge during Season 18: Donny Osmond sat at the table for last week's "Disney Night," while Robin Roberts and Julianne Hough also  visited the ballroom to score the dances.

Viewers can also expect to see two surprise performers during the episode. 

Dancing With the Stars airs Monday at 8 p.m. on ABC.