What is Andy Williams theme song?

Andy Williams is famously associated with the song "Moon River," which was written by Henry Mancini and Johnny Mercer for the 1961 film "Breakfast at Tiffany's." The song became a signature piece for Williams, showcasing his smooth vocal style and emotional delivery. It embodies themes of nostalgia and longing, making it a timeless classic that resonates with audiences. Williams often performed it in his concerts and television specials, solidifying its place in his legacy.