Nearly every single successful band who has ever been will tell you that the relationship between band members is very much like a marriage.  When you spend hours, days, months and eventually years together, sit side by side through mile after mile as you travel the country, and watch as your creations are born and breathe the breath of life, then you pretty much have a true understanding of marriage.  For Kerry and Donna Herrick, that bond was sewn with a double threaded needle being that they are, in fact, married, both literally and musically.