the Motown staff in 1966, Ashford & Simpson were paired with the vocal duo Marvin Gaye and Tammi Terrell, and they wrote and/or produced all but one of the late-1960s Gaye/Terrell singles, including hits such as the original version of "Ain't No Mountain High Enough", "Your Precious Love", "Ain't Nothing Like the Real Thing", and "You're All I Need to Get By". According to Gaye in the book Divided Soul, Simpson did most of the vocals on the last album he did with Terrell, Easy, as a way for Terrell's family to have additional income, as she was battling an ultimately fatal brain tumor. Though Louvain Demps, singer of the Andantes, has stated that she saw Terrell recording the album, and Simpson is quoted as saying, in a book written by Terrell's sister, Ludie Montgomery, what they saw was her singing the guide tracks for the album, which were later replaced by Tammi's own vocals. Ashford & Simpson wrote and produced almost all the songs on three 1970s albums for former Supreme Diana Ross, including her first solo album Diana Ross ("Reach Out and Touch (Somebody's Hand)") and "Ain't No Mountain High Enough", Surrender ("Remember Me"), and The Boss. All three albums were critically acclaimed with Diana Ross, her 1970 album debut, and The Boss being certified platinum and "Surrender" certified gold. Other Motown artists whom Ashford & Simpson worked with include Gladys Knight & the Pips ("Didn't You Know You'd Have to Cry Sometime", and after Motown they wrote and produced for this group "Landlord", "Bourgie, Bourgie", and "Taste of Bitter Love"), Smokey Robinson & the Miracles ("Who's Gonna Take the Blame"), Syreeta Wright ("I Can't Give Back the Love I Feel for You"), the Marvelettes ("Destination: Anywhere"), Martha Reeves & the Vandellas ("Tear It On Down"), the Dynamic Superiors ("Shoe, Shoe Shine"), Blinky Williams ("I Wouldn't Change the Man He Is"), and the Supremes with the Four Tops (original duets, plus the production of a hit cover of Phil Spector's "River Deep-Mountain High"). Other artists with whom Ashford & Simpson had hits were Teddy Pendergrass ("Is It Still Good to Ya"), the Brothers Johnson ("Ride-O-Rocket"), Stephanie Mills ("Keep Away Girls"), Chaka Khan, both on her own ("I'm Every Woman" and "Clouds"), and with Rufus ("Keep It Comin'" and "Ain't Nothin' But a Maybe"). Performers Ashford & Simpson's career as recording artists began in the early 1960s as part