Two wild and craaaazy guys appeared on "Saturday Night Live" last night ... and we don't mean Justin Timberlake and Andy Samberg's "D**k in a Box" duo.

Though they were there too.

Joining JT and Andy in a sketch called "It's a Date," were Steve Martin and Dan Aykryod's Festrunk Brothers (aka Two Wild and Crazy Guys).

Steve and Dan got back in costume for the first time since 1998 for the skit, which pitted them against the "D**k" singers in a dating game.

It was definitely the highlight of an already killer episode, which also included a cameo-packed monologue that honored JT's new membership in the "Five-Timers Club."

How do you think Justin did last night? Sound off below!

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