Psy taught Britney Spears 'Gangnam Style' on 'Ellen'

There is so much pop culture happening in this.

When Ellen DeGeneres heard that Britney Spears was a fan of Psy's "Gangnam Style," the goofy K-pop club hit launching a million internet parodies, she called on the Korean rapper himself to teach Spears a thing or two about riding an imaginary horse.

His sage advice?

"[The] mindset of this dance is -- dress classy and dance cheesy."

Spears had expressed her appreciation of the video over Twitter last month:

Britney Spears and Ellen aren't the only celebrities to jump on the "Gangnam Style" train.

Boy band The Wanted invited Psy to join them on stage during a performance before the VMAs.

“So, we have a really good friend that’s joining us tonight. He’s, uh, he’s from the East Side," The Wanted's Max George remarked.

Feel free to skip to minute 1:57 when the whole group breaks out into dance.

The 34-year-old rapper, whose real name is Park Jae-sang, has just signed a deal with Justin Bieber's uber-manager Scooter Braun, no stranger to YouTube singers and web sensations. He accidentally discovered one of Bieber's music videos on YouTube in 2007 and also manages Carly Rae Jepsen, queen of internet parody videos.