Frozen 2 is getting ready to deliver another hit ballad in a new TV spot, which offers a preview of Elsa's song "Into the Unknown." The sequel, directed once again by Chris Buck and Jennifer Lee, will see Elsa, Anna, Kristoff, Olaf and Sven leaving Arendelle to go on a journey to find out the origin of Elsa's ice powers.

It's been widely speculated that Frozen 2 will reveal that Elsa and Anna's mother, Queen Iduna (voiced by Evan Rachel Wood), didn't actually die in a shipwreck, but is still alive out there somewhere. Fans have also theorized that Iduna, like Elsa, had magical powers, which would certainly explain where Elsa got them from. One thing that's for certain, however, is that we're going to get some new songs in this movie - songs that parents will be forced to listen to over and over again just like they were when "Let It Go" landed in 2013.

Related: Frozen 2's Story Answers Why Elsa Has Powers & Where Their Parents Went

Elsa's new big ballad in Frozen 2 is a song called "Into the Unknown," which Disney fans at D23 got to hear in its entirety when they were shown a series of clips from the movie. In the footage shown, Elsa is being haunted by a voice in her head that's calling to her. After trying and failing to drown it out, she goes searching through the castle for the source of the voice, with the chase eventually taking her outside and across Arendelle as she sings "Into the Unknown." A new TV spot for Frozen 2 features an excerpt of the song as Elsa, Anna and their friends encounter new dangers and strange magic on their adventure.

As well as giving Frozen fans a new song to get addicted to, the TV spot also offers some more insight into the plot of Frozen 2. Elsa and Anna are instructed to go to the enchanted forest north of Arendelle, and are told that "the past is not what it seems" (another hint that there might be more to their parents' disappearance than mere misfortune). We also see Elsa battling magic that appears to be connected to different elements, such as an enormous rock monster, a tornado, and strange pink fire. Perhaps she will end up encountering more people like herself, who won't necessarily be friendly.

Finally, the TV spot offers a new look at Sterling K. Brown's character, Lieutenant Matthias, as he and other soldiers of Arendelle stand to attention and bang their swords on their shields to salute their queen. Interestingly, Frozen 2 has yet to reveal its antagonist, which could mean that the movie either doesn't have a villain or (as in the first movie) the villain will turn out to be someone who appeared trustworthy.

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