Christmas sees people go all out in decorating their homes with lights galore. But look what happens when a neighborhood pools together and syncs their light display to a favorite festive tune. A group of neighbors in Yucaipa, California did just that and kitted out their homes with lights before adding in some exciting Christmas songs. Check out this one as the neighborhood syncs Christmas lights to Harry Connick Jr. in fun festive treat. Credit: YouTube/Jeff Maxey