"Goin' Out of My Head" is a song written by Teddy Randazzo and Bobby Weinstein, initially recorded by Little Anthony and the Imperials in 1964. Randazzo, a childhood friend of the group, wrote the song especially for them, having also supplied the group with their previous Top 20 Hit "I'm on the Outside ". Their original version of the song was a Billboard Top 10 Pop smash, reaching No. 6 on the Billboard Hot 100, and No. 1 in the Canadian RPM-list in 1965. The song peaked at No. 8 on Cashbox magazine's R&B chart. The Little Anthony and the Imperials original recording is the best-known version of the song, although it has since been covered by many other artists, including the Zombies, who released a rendition as their last single on Decca Records.

Alessandro Carmelo "Teddy" Randazzo was an American pop songwriter, singer, arranger and producer, who composed hit songs such as "Goin' Out of My Head", "It's Gonna Take a Miracle", "Pretty Blue Eyes", and "Hurt So Bad" in the 1960s.