Listen to 15 April 1956. San Antonio, Texas - Charlie Walker Interview online. 15 April 1956. San Antonio, Texas - Charlie Walker Interview is an English language song and is sung by Elvis Presley. 15 April 1956. San Antonio, Texas - Charlie Walker Interview, from the album Word for Word (1955 - 1977), was released in the year 2001. The duration of the song is 5:15. Download English songs online from JioSaavn.