Meet Myles and Kolton, a couple of kickass kids who improve on Jason Mraz's "I Won't Give Up" with nothing but a guitar and a ukulele.

Don't even think about comparing them to Justin Bieber.

[vvv]

The Stella sisters have a YouTube channel!

No butter containers to be found on this March cover of Jason Mraz's "I Won't Give Up," but it's not Gotye, and their mini-hipster names -- Lennon and Maisy-- are still awesome.

[lennonandmaisy]