Dolly Parton and Miley Cyrus appear in a Super Bowl commercial that will air Sunday. Survivor's "Eye of the Tiger" is also on hand to inspire them.

Some advertisers are skipping the wait and releasing full commercials in the week leading to the Super Bowl, but T-Mobile is holding out and releasing just a 15-second preview of its upcoming ad. The full commercial will be unveiled during the game this weekend.

In the teaser video, Parton dons a blinged-out vest and offers encouragement to Cyrus, her real-life goddaughter. "You've got a voice, Miley," she tells her in a video call. "Use it."

Cyrus is all business in a classic blazer, surrounded by framed gold and platinum records in the throes of a creative brainstorming event. She scratches out notes including one that says "Let's do it for the phones." Then she asks herself, "What would Dolly do?" Bursts of "Eye of the Tiger" play throughout the spot, leading us to believe that the full ad will include more of the Rocky III theme song.

You can watch the teaser video below.

Since its release, "Eye of the Tiger" has served as a popular soundtrack song on TV and movies. The famous syncopated riff has appeared in SupernaturalModern FamilyNew Girl and Breaking Bad; the track was also central to the 1986 Gary Busey movie Eye of the Tiger, about a Vietnam War veteran who returns to his hometown to start his life over with his wifeBusey may be the common denominator here: He starred alongside Parton in the made-for-TV movie Wild Texas Wind in 1991.

Other rock songs that will be heard during Sunday's big game include Fleetwood Mac's "Little Lies" for Amazon Alexa, George Baker Selection's "Little Green Bag" for Planet Fitness,  Electric Light Orchestra's "Showdown" for Michelob Ultra and Bonnie Tyler's "Total Eclipse of the Heart" for Kia.

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