William Kenneth Alphin (born in Culpeper, Virginia on November 1, 1963) is an American country music singer, known professionally as Big Kenny. He is a member of the American country music duo Big & Rich, which also comprises John Rich. Together, Big & Rich have recorded three studio albums for Warner Bros. Records, and have charted several singles on the Hot Country Songs charts. Alphin also recorded a solo album in 1999 titled Live a Little, although it was not released until 2005.
On January 23, 2005 he married Christiev Carothers. She has two sons from a previous marriage: Christopher Carothers, Cameron Carothers, and together they have one son, Lincoln William Holiday Alphin, born on November 2, 2005.
In addition to several of Big & Rich's singles, he has co-written "Here for the Party" by Gretchen Wilson, "Hicktown" and "Amarillo Sky" for Jason Aldean (the latter of which was previously recorded by McBride & the Ride), and "Last Dollar (Fly Away)" for Tim McGraw. All songs were co-written with John Rich except "Last Dollar," in which Big Kenny was the sole writer.