Demi Lovato is about to have a big diva moment…

The 20-year-old part-Mexican American actress has signed on to perform at this year’s VH1 Divas concert.

Lovato, currently serving as a judge on Fox’s The X Factor, will take the stage at the concert event that celebrates current and classic divas in the music world. Similar to previous productions, this year’s show will benefit VH1‘s Save the Music Foundation, a non-profit organization dedicated to helping keep music education alive in public schools.

Other confirmed performers include Miley Cyrus, Jordin Sparks, Ciara and Kelly Rowland, while this year’s host will be former American Idol runner-up Adam Lambert.

“I’m so thrilled to be hosting VH1 Divas this year,” said Lambert in a statement. “I have a feeling it’s going to be the most fabulous concert of the year! And LIVE!! Get ready for some amazing performances, killer fashion and fierce divas!”

Besides the grand performances on the show, the night will include tributes to Whitney Houston and Donna Summers for their contributions to the music industry.

Show organizers are expected to announce more big name performers as the event’s airing date nears.

VH1 Divas will air live on Sunday, December 16 at 9/8c.