Photo: Courtesy Jeffrey Richards Associates

Jonathan Groff and Lea Michele in Spring Awakening

Lea Michele,Jonathan Groffand the gang from Broadway’s Tony Award-winning musicalSpring Awakeningare getting back together.

On Nov. 15, the cast and creative team will reunite in concert atBroadway’s Imperial Theatre, PEOPLE can exclusively reveal.

The one-night-only event will celebrate the 15th anniversary ofSpring Awakening, which began previews on Broadway Nov. 16, 2006, and officially opened in December of that year. The musical, which starred a young Michele prior to her breakout role asGlee’s Rachel Berry, went on to win eight 2007 Tony Awards, including best musical.

Benefitting The Actors Fund, the 7 p.m. concert presentation of the entire musical will be performed at music stands.

Along with Michele and Groff, who starred in HBO’sLooking, the original cast also featuredPitch Perfect’sSkylar Astin,The Newsroom’s John Gallagher Jr., Lilli Cooper, Christine Estabrook, Gideon Glick, Brian Charles Johnson, Lauren Pritchard, Stephen Spinella, Phoebe Strole, Jonathan B. Wright, Remy Zaken, Gerard Canonico, Jennifer Damiano, Robert Hager and Krysta Rodriguez.

Janette Pellegrini/WireImage

Jonathan Groff and Lea Michele

Original cast member Pritchard tells PEOPLE that she and Groff were the driving forces behind the reunion.

“The next night, I had this very vivid dream that we all got back together for a one-night-only concert, we did it as a benefit concert, and it was filmed, and we were all there,” Pritchard tells PEOPLE. “So I called Jonathan the next day, and I say, ‘Groff, I had this amazing vivid dream.’ Why can’t we do a one-night-only concert?”

In addition to theSpring Awakeningconcert, Pritchard — known to the music world as LOLO (“Miss Jackson” with Panic! At the Disco) — reveals to PEOPLE that she will release her new rockabilly album, titledX, on Dec. 10.

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“For years, I wanted to make a LOLO, modern version of a rockabilly record,” says Pritchard. “We picked 11 songs from the rockabilly era — some are a little bit more obscure, some of them are more well-known — and we gave them the LOLO treatment. We made the record down here in Jackson because it is the home of rockabilly and made them with rockabilly players from here.”

She adds, “The music is so full of life and joy and fun. It’s just been amazing to work on something like this that makes you want to get up and shake your body around.”

“When I approached No Reverse Records with the idea of making my Rockabilly dreams come true it was like I didn’t have to explain anything to them. They heard my ideas and saw my heart and passion for this project. Being able to work with people who see me where I’m at is the real dream.”

source: people.com