Watch Johnny's Wild 'Bad Grandpa' Transformation

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Johnny Knoxville spun his outrageous "Irving Zisman" character into box-office gold with Bad Grandpa, and with today's announcement that the film has been nominated for a Best Makeup and Hairstyling Academy Award, we're going behind the scenes to see how they pulled off that wild, very convincing transformation. Watch the video and share...

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"What an honor that Stephen Prouty got nominated for Best Makeup and Hairstyling for Jackass Presents: Bad Grandpa," says Knoxville. "Am I as stunned as everyone else we didn't get the nod for Best Picture? Well of course, duh, but I won't let that take away from my happiness for Steve, Tony Gardner, and our whole makeup team. Wahoo!"

Jackass Presents: Bad Grandpa is a cross-country tale captured on hidden cameras that pairs Knoxville with his pint-sized, Fun Size co-star Jackson Nicoll as his 8-year-old grandson and unlikely companion, Billy. As Irving introduces the young and impressionable Billy to people, places and wild situations -- male strippers, a child beauty pageant, a funeral home service and a biker bar to name a few -- cameras capture the reactions of real people who just can't believe what they've just seen.

Related: Knoxville Hams It Up with 'Little Jerk' Jackson

Jackass Presents: Bad Grandpa arrives on Blu-ray Combo Pack on January 28 with an Unrated Cut crammed full of even more outrageous footage, along with the theatrical version of the film, UltraViolet or a digital copy and also over an hour of behind-the-scenes antics, deleted scenes and alternate reactions from real people. The film will also be available as a single-disc DVD.

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