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OTRC: Jerry Seinfeld confirms 'Seinfeld' project: 5 clues (Video)

Jerry Seinfeld appears at the opening night of 'Beautiful - The Carole King Musical' at The Stephen Sondheim Theatre in New York City on Jan. 12, 2014. / Seinfeld appears with Jason Alexander outside Tom's Restaurant in New York City on Jan. 13, 2013. (Adam Nemser/startraksphoto.com / Twitter.com/ClubAliP)

Jerry Seinfeld confirmed on Thursday, Jan. 30, that he is working on a secret "Seinfeld" project.

Seinfeld initially teased during a Jan. 6 Reddit AMA (Ask Me Anything) Q&A session (Warning: link contains explicit language) that he was working with "Seinfeld" co-creator Larry David again.

"We wrote this script for this thing that you will eventually see but I can't reveal what it is at this time. All I can do is tell you is that it's big, huge, gigantic," Seinfeld wrote. "Even bigger than that Amazon package."

The comedian appeared on the radio show "Boomer & Carton" on Thursday where he revealed a few details about the top secret project. Check out five clues from in the interview below.

1. Seinfeld calls it his "secret project."

The comedian was asked about a photo of him and Jason Alexander taken on Jan. 13 outside Tom's Restaurant, the exterior location of the diner setting on the sitcom. Seinfeld confirmed the project was not a commercial and it was not an episode of his web series "Comedians in Cars Getting Coffee."

"But, it is not not those things, either. It's a secret project," he later added.

2. It was filmed.

Seinfeld did not reveal which company filmed the project.

3. Other "Seinfeld" characters were involved.

The comedian did not reveal if viewers would see Elaine (Julia Louis-Dreyfus) and Kramer (Michael Richards), but he did reveal that Alexander was playing his "Seinfeld" George Costanza.

4. Larry David is involved.

David was not filmed on camera for the secret project, according to Seinfeld, and his voice was not heard during the filming.

5. "It's a short-ish form."

Seinfeld confirmed the project was longer than 60 seconds and that there were other filming locations besides the diner.

See a video from Seinfeld's interview on "Boomer & Carton" below.

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