It's Gonna Take A Miracle was written by Teddy Randazzo, Lou Stallman and Bob Weinstein. Randazzo, a singer and accordion player, had been a member of the Three Chuckles, a Brooklyn trio that had a #20 hit with Runaround in December 1954. He also had three solo hits: Little Serenade (1958), The Way Of A Clown (1960) and Big Wide World (1963). Randazzo wrote Little Anthony & the Imperials' 1965 hit Take Me Back and co-wrote several of their other hits including Hurt So Bad, Goin' Out Of My Head and I'm On The Outside Looking In.
It's Gonna Take A Miracle has been recorded by 17 artists including Ken Boothe, Katey Sagal, Laura Nyro & LaBelle, the Manhattan Transfer & Bette Midler, the Shirelles and the Marvelous Wonderettes. Here is the original version by the Royalettes, a Baltimore quartet. It reached #41 on the Hot 100 in September 1965.