Holt enlisted in the United States Army in 1954[2] and was stationed in Germany, where he played with a military band, and upon his return worked with Lewis, alongside Young, from 1956 to 1966, in addition to recording with Earl Bostic and James Moody near the end of the 1950s.
In 1966, Young and Holt split with Lewis and formed their own group, Young-Holt Unlimited, which went on to achieve commercial success as an instrumental soul band.[2] Their band's biggest hit was released in November 1968 as "Soulful Strut" credited to Young-Holt Unlimited and it became a gold record No. 3 hit in the United States and went to No. 1 in Canada.[5] After the group's dissolution in 1974 Holt continued on as Redd Holt Unlimited, playing under this name into the 1990s, and worked in jazz education in Illinois. He founded the Gumption Artist Workshop, which was active from 1980 to 1985, and played internationally, including at the 1988 Montreux Jazz Festival and in Singapore in the late-1980s and early-1990s.[6] For 20 years, Holt also played with a trio at the East Bank Club in Chicago. The studio sessions produced a vinyl LP named, It's A Take! on the Treehouse Record label with eight full-length jazz standards. He continued to perform regularly until the COVID-19 pandemic.[2]
Personal life and death
In 1954, Holt married Marylean Green, and they had three sons.[2] He died from lung cancer at a hospital in Chicago on May 23, 2023, at the age of 91.[2][7]