Sisters Lennon and Maisy are 12 and 8 years old, and they do a sweetly harmonic cover of Robyn's Call Your Girlfriend - that is actually their own take on an existing cover by "Erato." Very sweet - and what voices for young kids!
These two kids are awesome. That explains why their Wii dancing is nearing close to two million views. The pair were captured dancing to Outkast's Hey Ya!