"If You Wanna Be Happy" is a 1963 song recorded by Jimmy Soul, written by Rafael de Leon and adapted by Joseph Royster, Carmella Guida and Frank Guida.
"If You Wanna Be Happy" is based on the song "Ugly Woman" by the Trinidadian calypsonian Roaring Lion (writing credited to his real name, Rafael de Leon), recorded in 1934. It hit #1 on the Hot 100 on May 18, 1963, as well as on the R&B singles chart. It was issued on Frank Guida's S.P.Q.R. label and distributed by London Records, and in the United Kingdom on EMI's Stateside label, the same month "Please Please Me" by The Beatles put EMI on the map.
The single was released in New Zealand on the Allied International label.