Foreststorn "Chico" Hamilton was an American jazz drummer and bandleader. He came to prominence as sideman for Lester Young, Gerry Mulligan, Count Basie, and Lena Horne. Hamilton became a bandleader, first with a quintet featuring the cello as a lead instrument, an unusual choice for a jazz band in the 1950s, and subsequently leading bands that performed cool jazz, post bop, and jazz fusion.

Gerald Joseph Mulligan, also known as Jeru, was an American jazz saxophonist, clarinetist, composer and arranger. Though primarily known as one of the leading jazz baritone saxophonists—playing the instrument with a light and airy tone in the era of cool jazz—Mulligan was also a significant arranger working with Claude Thornhill, Miles Davis, Stan Kenton, and others. His piano-less quartet of the early 1950s with trumpeter Chet Baker is still regarded as one of the best cool jazz ensembles. Mulligan was also a skilled pianist and played several other reed instruments. Several of his compositions including "Walkin' Shoes" and "Five Brothers", have become standards.