Sure, you could be cynical about Lennon and Maisy, the twee sibling stars of Nashville who got their start posting precocious Robyn/Erato covers on YouTube, but why put in all that negative effort when both girls are so damn talented and charming?

The week, the sisters' released a moody, stripped down cover of the Charlie XCX jam "Boom Clap" off the Our Fault in Our Stars soundtrack. The song features Lennon on the electric guitar (those lessons with Deacon paid off) and both girls singing the beautiful harmonies that we've come to expect from them.

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Now, if you'll excuse me, I have a Lennon and Maisy YouTube rabbit hole to fall down.