LAS VEGAS – Singer LaMonte McLemore, a founding member of vocal group The 5th Dimension, whose smooth pop and soul sounds with a touch of psychedelia brought them big hits in the 1960s and ’70s, has died. He was 90.

McLemore died Tuesday at his home in Las Vegas surrounded by family, his representative Jeremy Westby said in a statement. He died of natural causes after having a stroke.

The 5th Dimension had broad crossover success and won six Grammy Awards including record of the year twice, for 1967’s “Up, Up and Away” and 1969’s “Aquarius/Let the Sunshine In.” Both were also top 10 pop hits, with the latter, a mashup of songs from the musical “Hair,” spending six weeks at No. 1.

McLemore had a parallel career as a sports and celebrity photographer whose pictures appeared in magazines including Jet.

Born in St. Louis, McLemore served in the Navy, where he worked as an aerial photographer. He played baseball in the Los Angeles Dodgers’ farm system and settled in Southern California, where he began making use of his warm bass voice and skill with a camera.

He sang in a jazz ensemble, the Hi-Fi’s, with future 5th Dimension bandmate Marilyn McCoo. The group opened for Ray Charles in 1963 but broke up the following year.

McLemore, McCoo and two of his childhood friends from St. Louis, Billy Davis Jr. and Ronald Towson, later formed a singing group called the Versatiles. They also recruited Florence LaRue, a schoolteacher McLemore met through his photography, to join them. In 1965 they signed to singer Johnny Rivers’ new label, Soul City Records, and changed their name to The 5th Dimension to better represent the cultural moment.

Their breakthrough hit came in 1967 with the Mamas & the Papas’ song “Go Where You Wanna Go.”