Maeve McDermott

USATODAY

The already-stunning Neil deGrasse Tyson/B.o.B feud about whether the earth is flat just took a turn, courtesy of Neil's rapper nephew.

After B.o.B dropped a diss track Flatline Monday night, TYSON (real name: Steve Tyson) collaborated with his uncle on his own, a Back to Back-parodying song called Flat to Fact.

And it's an instant classic:

Come for the science jokes, stay for the Stacey Dash reference.

We talked to TYSON about how 2016's best diss track yet came into existence.

USA TODAY: When today did Neil's people reach out about writing a rebuttal, and how long did it take to write? It went up lightening-fast.

TYSON: Yesterday Neil and I were texting about his responses to B.o.B's tweets about Earth being flat, and then I woke up this morning to my newsfeed going off that B.o.B released a diss track toward Neil. My first reaction was for Neil to play StarTalkin, a science-themed song that I recorded for [Neil's podcast] StarTalk Radio, to help enlighten B.o.B about the cosmos.

Then I decided I need to write something fresh that directly addresses his allegations.

Q: Did you immediately know you wanted to do a Back to Back-themed song?

A: Once I started thinking about how to construct my response, the Back To Back beat was the first thing that popped into my head.

Q. Did Neil provide any science tips for the song, or was that all you?

A. Neil only provided audio of himself reading his original tweets to B.o.B, and I wrote the rest.

Q. What do you think about B.O.B? Were you a fan before?

A. I enjoyed Adventures of Bobby Ray when it came out and also I listened to his album Strange Clouds non-stop for months. I'm a fan of dude. I enjoy his music and I also admire what he's done with his art on the business side of things.

And the song's success is coming as a surprise for the rapper. "To be clear, none of that (expletive) was in the studio," he wrote on Twitter. "Strictly living room. Never expected it to blow up. Could care less about critique on it."

Compare Flat to Fact to B.o.B's original: