Aguilera's adorable children made sure to dress for the occasion, rocking outfits with their favorite emojis. Max opted for a traditional smiling face, while Summer sported a shirt with a huge winking emoji.
In the film, the 36-year-old mother of two voices the role of an animated dancer named Akiko Glitter, who lives inside the Just Dance app.
The Emoji Movie -- starring T.J. Miler, James Corden, Anna Faris, Maya Rudolph, Jennifer Coolidge, Sofia Vergara, Sean Hayes and Patrick Stewart -- hits theaters July 28. Check out the video below for a look at the animated comedy.