Ozzy Osbourne has joined the cast of Trolls World Tour, the upcoming sequel to 2016's Trolls, which finds the animated characters based on Troll dolls discovering "there are other Troll worlds beyond their own, each defined by a different genre of music" in the 3D family film.

The veteran rocker will portray a character named King Thrash, a villain from "hard-rock royalty" who "wants to destroy all other kinds of music to let rock reign supreme" and is the father of Queen Barb, a rock music-loving Troll played by Crazy Ex-Girlfriend star Rachel Bloom, as AWN reported Wednesday (June 19).

Other actors and musicians announced for Trolls World Tour include returning Trolls leads Anna Kendrick and Justin Timberlake alongside Kenan ThompsonMary J. BligeGeorge Clinton and many others in the Walt Dohrn-directed film from DreamWorks Animation.

This week, DreamWorks released 21 individual character posters for the movie. See Osbourne's unique Trolls poster down toward the bottom of this post. In it, the furry Troll creature's hand is seen throwing up the sign of the horns.

Earlier this year, Osbourne rescheduled his "No More Tours 2" farewell tour following a string of health incidents. See the Trolls World Tour poster and read the film's official synopsis below. It hits theaters April 17, 2020.

Universal Pictures

It’s all glitter and happiness in Troll Town until Queen Poppy and Branch make a surprising discovery—there are other Troll worlds beyond their own, each defined by a different genre of music. When a mysterious threat puts all the Trolls across the land in danger, Poppy, Branch, and their band of friends must embark on an epic quest through unfamiliar terrain to do the impossible: create harmony among the diverse Trolls to unite them against certain doom.

TROLLS WORLD TOUR boasts an all-star cast that includes returning cast members Anna Kendrick (Poppy), Justin Timberlake (Branch), James Corden (Biggie), Caroline Hjelt (Chenille), Aino Jawo (Satin), Ron Funches (Cooper) and Kunal Nayyar (Guy Diamond), who are joined by Sam Rockwell, Chance the Rapper, Anthony Ramos, Karan Soni, Flula Borg and Jamie Dornan, who will voice new characters for this all-new installment in the Trolls franchise.

With TROLLS’ Walt Dohrn back to direct and Gina Shay once again producing, TROLLS WORLD TOUR will be co-directed by David P. Smith. The film expands the series’ music genres, representing a variety of songs from pop, country and hip-hop, to hard rock, funk, K-pop and EDM—as well as everything in between.

Photos: Ozzy Osbourne Through the Years