This sweet brother and sister seem to love to sing together. This time they do a mash-up of the Beatles “Let it Be” and “Let it Go” from the hit movie Frozen. I am always amazed when siblings sing and how beautiful their harmonies are! Kenny at 21 has become a Vine sensation with about 1.4 million viewers. He began playing piano at age 8 in Michigan and moved to LA to pursue his career.