The group was eventually selected as the house band at New York's famed Cafe Au Go Go, and established itself as a leading Folk Rock / good time attraction. Their sound would temper their Blues and Jugband influences with gentle California psychedelia, particularly after they moved to the San Francisco Bay area. While Young was always the focal point of the band, their first two albums also had songwriting contributions from Jerry Corbitt. Their first single, "Grizzly Bear" was a local hit and their second attempt, "Get Together" didn't do much better when it was first released. This Dino Valenti song had previously been recorded by the Jefferson Airplane, but The Youngbloods' slow, soulful interpretation of "Get Together" was definitive. The record faded quickly but suddenly rocketed to #5 on the Billboard Hot 100 when it was re-released in 1969 after it had been used in a television public service ad. The tune was subsequently adopted as a counter-culture anthem. By that time, Corbitt had left, and The Youngbloods, reduced to a trio, were living in Marin County, CA. 1969's "Elephant Mountain" was produced by Country artist Charlie Daniels. Reflecting the mellowing influence of San Francisco psychedelia, it was their best effort, featuring some of Young's best songs. They released a few more albums in the early '70s (some live), but on these, the mellow California Rock sound that had served them well on Elephant Mountain had begun to turn sour.
Further albums by Bauer, Levinger and Young were marred by inconsistency. A friend from the Boston days, Michael Kane, joined the band in the Spring of 1971, but they split the following year when Young left the band. Levinger, Bauer and Kane continued as Banana And The Bunch, but this occasional venture subsequently folded. In late 1984, The Youngbloods briefly reunited for a club tour. That lineup contained Young, Corbitt and Levinger, along with new members David Perper on drums and Scott Lawrence on keyboards and woodwinds. Once the tour was completed in early 1985, the group disbanded again.
Jesse Colin Young went on to have a moderately successful career as a solo singer / songwriter, but his recording studio and house in Inverness, California, were destroyed in the Mount Vision fire in 1995. Young, his wife, Connie, and their two children spent the next ten years living in Hawaii, where they maintained a coffee plantation. In 2006, Young moved his family to South Carolina and was still touring in the U.S. as a solo act into 2017.