February 5, 2015 11:01 AM EST

You might recognize Canadian-American sisters Lennon and Maisy Stella from their roles as Maddie and Daphne Conrad on ABC’s Nashville. But when they’re not filming the show, they perform as a musical duo called Lennon & Maisy.

The sisters’ latest is a soulful cover of Charli XCX’s hit “Boom Clap,” which you might remember from The Fault In Our Stars soundtrack. They slow it down and put their signature soulful, folky spin on it. We’re all about Charli’s original, but this cover is beautiful — and it’s got the benefit of some solid two-part harmonies.

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