Justin Timberlake, Kelly Clarkson, Anna Kendrick, Rachel Bloom 
Poppy and Branch discover that there are six different troll tribes scattered over six different lands. Each tribe is also devoted to six different kinds of music -- funk, country, techno, classical, pop and rock. When rockers Queen Barb and King Thrash set out to destroy the other music, Poppy and Branch embark on a daring mission to unite the trolls and save the diverse melodies from becoming extinct.