Music video for Trolls features the track “Hair Up” by Justin Timberlake, Gwen Stefani and Ron Funches. Music video is somewhat like a trailer, providing a compilation of footage from the film with some story elements. If the melody sounds somewhat familiary, that is because it is a remix of the great classical piece, “In the Hall of the Mountain King”.Trailer Addict has setup TA, Trailers Anonymous. Feel free to contact us at please enable javascript to view with your scoops, comments or advertising inquiries.