"(The Best Part of) Breaking Up" is a song written by Phil Spector, Pete Andreoli and Vince Poncia. It was first recorded by The Ronettes, produced by Phil Spector and arranged by Jack Nitzsche with Ronnie Spector on lead vocals and with backing vocals by Nedra Talley and Estelle Bennett, ably abetted by Darlene Love and the Blossoms, Bobby Sheen (a.k.a. Bob B. Soxx), and Sonny and Cher. The song was released in April 1964, the year widely recognized as the group's most successful year, and proved to be the group's third consecutive top forty hit in the US. The single peaked at number 39 on the U.S. Billboard Hot 100 and number 43 on the UK Singles Chart.