Melissa McCarthy Transforms Into Sean Spicer in Epic, Musical 'Saturday Night Live' Promo

Melissa McCarthy will be joining the Five-Timers Club when she hosts Saturday Night Live this weekend, and the comic genius is feeling oh so pretty in this awesome promo.

In the trailer, McCarthy pays tribute to her love of song and dance with a lighthearted, graceful spin through the halls of studio 8H while lip syncing to the iconic West Side Story number "I Feel Pretty."

WATCH: Melissa McCarthy Nails Amazing Sean Spicer Impression in Explosive, Hilarious 'SNL' Sketch

Meanwhile, McCarthy also gives fans an inside look at how she transforms into White House Press Secretary Sean Spicer -- apparently it involves a makeup chair and a team of 1940s barbers -- before continuing her musical romp in full "Spicey" get-up.

McCarthy debuted her acclaimed Spicer impression in February, when she made a surprise appearance during an episode hosted by Kristen Stewart. She's since reprised the role twice, most recently in April when she played the press secretary making a public address decked out as the Easter Bunny.

WATCH: Melissa McCarthy Reveals How She Became Sean Spicer on 'SNL,' Jokes He's Going to Be in Her Christmas Card

It seems from this awesome SNL promo that fans can all but be assured that McCarthy will once again don Spicer's suit and wig when her episode airs on Saturday at 8:30 p.m. PT,11:30 p.m. ET on NBC. McCarthy will be joined by musical guest Haim.

For more on the actress' celebrated impression, check out the video below.

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