The first of three collaborative albums by Marvin Gaye and Tammi Terrell, United was released on August 29, 1967 on the Motown subsidiary label Tamla Records. It was the duo's as well as Marvin Gaye's most successful album of the 1960's, with sales almost reaching one million copies. It yielded four Top 100 Billboard chart hits, including the two Top 10 singles, "Your Precious Love," and "If I Could Build My Whole World Around You." United peaked at #69 on the U.S. Billboard 200 album chart and #7 on the U.S.

Billboard R&B albums chart upon its release. United received a 4 ½ star rating on AllMusic, with reviewer Andrew Hamilton stating that it "was the first of their three LPs, and quite possibly the best of the lot."