Background: "I Heard It Through the Grapevine" is a song written by Norman Whitfield and Barrett Strong for Motown Records in 1966. The first recording of the song to be released was produced by Whitfield for Gladys Knight & the Pips and released as a single in September 1967; it went to number two in the Billboard chart. The Miracles recorded the song first and included their version on their 1968 album, Special Occasion. The Marvin Gaye version was placed on his 1968 album In the Groove, where it gained the attention of radio disc jockeys, and Motown founder Berry Gordy finally agreed to its release as a single in October 1968, when it went to the top of the Billboard Pop Singles chart for seven weeks from December 1968 to January 1969 and became for a time the biggest hit single on the Motown label (Tamla).
Context: Producer Norman Whitfield recorded "I Heard It Through the Grapevine" with various Motown artists. The first known recording is with the Miracles on August 6, 1966, though there may also have been a recording with the Isley Brothers, or at least Whitfield intended to record it with them; however a track has not turned up - some Motown historians believe that a session may have been scheduled but cancelled. The Miracles' version was not released as a single due to Berry Gordy's veto during Motown's weekly quality control meetings; Gordy advised Whitfield and Strong to create a stronger single. The Miracles version later appeared on their 1968 Special Occasion album, and a slightly different take, possibly from the same session but unreleased, appeared on the 1998 compilation album, Motown Sings Motown Treasures.  Marvin Gaye's version was recorded in spring 1967, and is the second known recording, though was also rejected by Gordy as a single, and would also later go onto an album, In the Groove. The third recording was in 1967 with Gladys Knight and the Pips in a new, faster arrangement. Gordy accepted the new arrangement and the Gladys Knight version was released as a single in September 1967, reaching number 2 in the charts. When Gaye's album with his version of Grapevine was released in August 1968, radio disc jockeys were playing the song, so Gordy had it released as a single in October, and it went to number one in December.  In 1968, Bobby Taylor & the Vancouvers recorded a version for their debut album based on Gladys' recent hit; however, after hearing the Marvin Gaye version, they felt they'd made the wrong choice. In 1969, Whitfield produced a version for the Temptations "psychedelic soul" album, Cloud Nine, in which he "brought compelling percussion to the fore, and relegated the piano well into the wings". In 1971, the Undisputed Truth recorded the song in a Marvin-styled version as did Bettye Lavette on her 1982 Motown album, Tell Me a Lie.
Question: What were the recordings?. Whats the answer?
Producer Norman Whitfield recorded "I Heard It Through the Grapevine" with various Motown artists.