Mandi Bierly
December 15, 2013 AT 08:40 PM EST

Fans of USA’s Psych have been waiting for the two-hour musical episode, and finally, it’s here (premiering Sunday night at 9 p.m. ET, followed by an instant replay). Dulé Hill, who’s currently on Broadway in the musical revue After Midnight, does get to tap a bit and sing a reggae song — the latter a request he sent to the show’s creator, Steve Franks, who came back with the ditty “Jamaican Inspector Man.” “I love how he did it too,” Hill says, “because he made it a run throughout the musical, so it doesn’t just come out of nowhere. When it comes up at the end, it’s a nice payoff.”

Of course, before that, there are many numbers, one in particular during which Hill had a tough time keeping a straight face: Look for Shawn (James Roday) to perform one of his psychic demonstrations at a park bench, and then for Shawn and Det. Lassiter (Timothy Omundson) to do a tango. “I was like, ‘Wow, we’re goin’ for it,'” Hill recalls, laughing again.

When Hill recently stopped by EW, we launched an investigation of our own. Watch his Pop Culture Personality Test below to find out what he took home from The West Wing, who he karaokes with, and who he once met on a morning after he and his brother Bert slept over at friend Emmanuel Lewis’ house in a tent.

Bonus question!

What’s the movie you quote all the time?

Sweet Sweetback’s Baadasssss Song. I always say, “In the words of the great Melvin Van Peebles, ‘What is all this we sh–?'” We ain’t doin’ nothing. You’re doin’ that, I’m goin’ home. Another one: ‘I’m just tryin’ to help, Ike.’ ‘You tryin’ to help Ike? YOU TRYIN’ TO HELP IKE?’ You know what that’s from? What’s Love Got to Do With It. ‘Try that cake, Anna Mae. Try that cake.'”

Watch EW’s Google+ hangout with Hill, Roday, and Ally Sheedy, who returns for the musical episode:

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