Motown has set an April 27 release for "Joined Together: The Complete Studio Duets," compiling two discs worth of collaborations between Diana Ross & the Supremes and the Temptations. Some of the tracks were originally released on the late '60s albums "Diana Ross & the Supremes Join the Temptations" and "Together" and are augmented here with a variety of bonus cuts.

"Join the Temptations" featured the smash hit single "I'm Gonna Make You Love Me," plus covers of such Motown staples as "Ain't No Mountain High Enough" and Marvin Gaye's "Try It Baby." The new edition begins with a medley of five songs, including the Supremes' "Stop! In the Name of Love" and also sports previously unreleased covers of the Beatles' "Got To Get You Into My Life" and the Burt Bacharach/Hal David-penned "A House Is Not a Home."

"Together" is loaded with unreleased single and mono mixes of tracks like the Band's "The Weight," Smokey Robinson's "I'll Try Something New" and Gaye's "Stubborn Kind of Fellow." Rounding out the album is a Mary Wilson solo version of "Can't Take My Eyes Off You" and an extended version of "Not Now, I'll Tell You Later," which first appeared on the Temptations' 1966 album "Get Ready."

The packaging for "Joined Together" sports new interviews with Supremes members Ross, Wilson and Cindy Birdsong, plus the Temptations' Otis Williams. The set will be issued a week after the compilation "Motown 1's," featuring the biggest hits from the label's storied past.