By Christopher Rosen
November 20, 2015 at 01:04 PM EST
Instagram/Jimmy Fallon

There are handshakes, and then there are handshakes. And then there’s whatever we want to call the 90 seconds of movement Jimmy Fallon and Justin Bieber shared on Thursday’s episode of The Tonight Show Starring Jimmy Fallon.

Fallon showed off his secret handshake with the pop superstar on the broadcast, a complicated series of hand slaps, claps, sounds, phrases, embraces, and even butt taps.

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“Good to see you, man,” Fallon said to Bieber after their aggressive display of friendship had ended. But in the interest of time, next time maybe a high-five will suffice.

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