Sarah Caldwell
April 05, 2013 AT 02:33 PM EDT

We’re all excited to see what Melissa McCarthy is going to do on this week’s Saturday Night Live (please Arlene, please please) and her interview with Fallon last night just got us even more pumped.

Looking like a total movie star — that hair — McCarthy described her quick change between the cold open and her monologue last time on SNL as ”the only time I’ve truly been assaulted… lovingly.”

Listen to the story of McCarthy’s magical change from a buck-toothed, muscular singer on Lawrence Welk to a dancing star in her monologue (all in 40 seconds):

Read more:

Melissa McCarthy’s ‘SNL’ future is so bright, she has to wear shades — VIDEO

‘SNL’ comedienne joins Lorne Michaels pilot

Melissa McCarthy talks casting Susan Sarandon in directorial debut, ‘Tammy’

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