Jonas Brothers Are Helping Kick Off 'All That' Reboot on Nickelodeon

Jonas Brothers, Kel Mitchell

Check out the new clip promoting the show's return!

Nickelodeon's All That is returning soon with some very special guests!

On Tuesday, the Jonas Brothers shared a new clip in which they are all standing on the set of one of the show's best-known sketches, Good Burger, to announce that they'll be stopping by for the very first episode of the reboot.

"Hey! We are the Jonas Brothers and we are so excited. We are going to be in the premiere of the all-new All That on Nickelodeon," Nick Jonas announces. "On June 15! See you there."

That's when Kel Mitchell, rocking the ensemble of Ed, his classic Good Burger employee character, strolls out and joins the boys.

"Only on Nick!" Kel proclaims in Ed's nasally voice, before turning to the youngest Jonas Brother and adding, "He's Nick!"

In a press release, the kids' channel promises Ed won't be the only classic character returning to the show. Lori Beth Denberg will return to offer new insight in "Vital Information" and appearing as Ms. Hushbaum, the hypocritical "Loud Librarian." The show will also feature a cast of new stars, who will be announced at a later date.

Naturally, the Jonas Brothers will also be lending their musical chops to the premiere, ending the show with a performance of their single, "Sucker."

Early in February, Nickelodeon first announced that they were reviving the sketch comedy series, which ran from 1994 to 2005. Kenan Thompson, an original cast member on the show, will be executive producing.

All That premieres on June 15 at 8:30 p.m. EST/PST on Nickelodeon.