With a story as emotional as Dory’s, only an equally as emotional theme song would do.

Fans only got surface information about Dory’s life in Finding Nemo, but now that Finding Dory is just around the corner, audiences will learn all about Dory’s journey and her family.

As any Disney-Pixar fan knows, these animated films can be pure tearjerkers, as can their accompanying theme songs. It probably shouldn’t come as a surprise, then, that Ellen DeGeneres (Dory) would ask Sia to perform “Unforgettable” for the end credits.

Written by Irving Gordon, “Unforgettable” was made famous by Nat King Cole in the 1950s, but the song won a Grammy in 1992 when Natalie Cole included it as a tribute to her late father on her album of duets. As for why Sia agreed to the song, she explained, “Dory’s story makes me teary. When Ellen asked me, I couldn’t refuse!”

“Dory’s story makes a lot of people teary,” Ellen responded on her show.

The new animated film also features the vocals of Ty Burrell as a beluga whale named Bailey; Willem Dafoe as Gill, a moorish idol; Diane Keaton as Dory’s mother, Jenny; Eugene Levy as Charlie, Dory’s father; Vicki Lewis as Deb (and her sister, “Flo,” Deb’s reflection), a four-striped damselfish; Kaitlin Olson as Destiny, Dory’s sister, a whale shark; and Ed O’Neill as Hank, an octopus. Idris Elba and Dominic West also star.

Disney-Pixar’s sequel comes 13 years after Finding Nemo, which became an instant hit with its heartwarming characters and hilarious one-liners. The new version takes place six months after the original, and unlike the first will not spend the majority of its time in the ocean. Instead, the movie will mostly take place at the Marine Biology Institute of California.

Finding Dory is only a few months away—swimming into theaters on June 17, 2016.

Leave a comment