When by having Buffalo Springfield, he served as a recording engineer, producer, and one of these days as a guitar player on the last album.

Messina & Richie Furay, another Buffalo Springfield member, formed Poco after Buffalo Springfield broke up. Messina played lead guitar & supplied vocals & occasionally songwriting to the band. When ii albums, Messina left Poco.

When Poco, Messina was by owning Columbia Records, serving as an independent producer when he met Kenny Loggins. Messina & Loggins worked together in what was to become Loggins' foremost album. In the course of producing Loggins' function, Messina provided backup vocals & guitar operate. One of these days, them decided to put out a album when "Kenny Loggins with Jim Messina Sittin' In".

Loggins & Messinthe went in to produce a total of popular albums. A class actiin split & each went on to solo careers. Messinthe manufactured a few albums that did non produce tremendously of a splash, however Loggins' solo career took off.