Growing up now has a verifiable soundtrack, thanks to the mellifluous harmonies of ethereal superduo Chloe x Halle.

The sisters, signed to Beyonce's Parkwood Entertainment (they even opened for Queen Bey on tour), released brand new grown-ish theme song "Grown" earlier today (December 29), and it plays like wistful, bottled nostalgia.

"It's about to go down / My heart beating so loud / Momma look I'm grown now," the duo croons over angelic harmonies and equally etherial, airy production.

And the video for "Grown," released in tandem with the track, finds the girls sorting through Snapchat filters to produce an earnest, unfettered video diary. "This is perfect especially at this point in my life, and the video is cute and spot on!" one YouTube user noted, while another commented "My heart's beating so loud for them."

Grown-ish premieres on January 3 at 8 PM on Freeform, and will kick off a brand new Freeform comedy block with a two-episode introduction. Chloe x Halle will release their debut album sometime in 2018.

The show, helmed by black-ish executive producer Kenya Barris, tackles issues in contemporary higher education, and follows 17-year-old Zoey (Yara Shahidi) as she finds her footing as a college student.

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