Selena Gomez teamed up with her 'Rudderless' co-star Ben Kweller for the acoustic jam 'Hold On' from the musical drama's soundtrack.

While the duo is an unlikely pairing, we're loving the way their voices blend together on the super chill track. The song's relaxed vibe totally extends to the music video, which features Kweller and Gomez singing on couches in a living room as a fire roars in the fireplace.

"Hold on, and suddenly you'll find your way," the duo sings on the chorus. "Hold on, til yesterday is far away." We can't get enough of those harmonies!

The vid also features a special guest on the keyboard -- veteran actor William H. Macy, who made his directorial debut with 'Rudderless.' (He also directed the music video.) We love how the vid -- and the film -- has brought all of these actors and musicians together!

Check out Selena Gomez and Ben Kweller's music video for 'Hold On' above, and don't forget to see the film when it hits theaters (and OnDemand) on Oct. 17.

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