Ellie Greenwich and Jeff Barry were one of the most successful Brill Building songwriting-production teams to supply hit compositions to Phil Spector and Jerry Leiber and Mike Stoller in the early ‘60s:
http://rockhall.com/inductees/greenwich-and-barry/bio/
Sadly we lost Ellie in 2009, Jeff is still active. Together with Phil Spector they pretty much created the “girl group” sound, and they made Neil Diamond a star.
The girl group sound was great. I fantasized about The Ronettes, as apparently did most of the British musicians of the day.