Blake Shelton tries to teach Jimmy Fallon how to milk a cow on 'Tonight Show'

Jimmy Fallon is great at a lot of things: musical impressions, not keeping a straight face in sketches and performing hip-hop medleys with pal Justin Timberlake.

Milking cows, though? Not so great.

In a bit of down-home revenge for making Blake Shelton try sushi during his last appearance on The Tonight Show,the country singer turned the tables on Fallon on Monday night when he forced the host get his hands dirty doing some basic farm chores.

"Still having nightmares about that," Shelton said of the first time he had raw fish. "Being the nice guy that I am I thought I'd let you a chance for some payback. You're going to make me do something that I've never done before, milk a cow," Fallon said as Shelton rubbed his hands in glee.

Shelton, who blasted his pal for dressing "very disrespectful," slamming Fallon's overalls and cowboy hat as very "Howdy Doody" and a bit like Woody from Toy Story, warned Jimmy that milking the cow (named Oreo) was no joke.

"Whoa, you don't just reach out and grab a teat!" Shelton warned Fallon after the comedian got handsy with Oreo. It got better after that...but not much.

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Watch the video below.

This article originally appeared on Billboard.com.