"Believe What You Say" is a song written by Dorsey Burnette and Johnny Burnette and performed by Ricky Nelson. The song reached #4 on the Billboard Hot 100, #6 on the R&B chart, and #10 on the country chart in 1958. The song appeared on his 1959 album, Ricky Sings Again. The song also appeared on his 1970 album, In Concert at the Troubadour, 1969.