Now this is what we call music!
Charli XCX has one amazing song called Boom Clap and we really did not think anyone could perform the song as well as she could!
However… we're wrong. A certain sister-duo called Lennon & Maisy (ages 15 & 11!!) from the show Nashville have proved that they're TOTALLY up for that challenge!
The YouTube siblings released the cover on February 3rd and it feels like a classic already, lolz!
The sisters are originally from Canada and now reside in the U.S. — and they've released amazing cover songs in the past, but this one may be their best one yet!
We guess their time on Nashville has served them VERY well! They even have a book coming out on April 28, 2015 via HarperColins — and it seems like these sisters are just straight up unstoppable!
Check out this haunting, chilling, and harmonious cover from Lennon & Maisy down (below)!!!