On January 14, 1970 Diana Ross made her farewell appearance with the Supremes at the Frontier Hotel in Las Vegas. Her solo career was championed by Motown boss Berry Gordy, who had her record an album with Nickolas Ashford and Valerie Simpson, the team behind many of Marvin Gaye's Motown hits. The Supremes were no longer a priority at the label, but "Up the Ladder to the Roof" proved they could land a hit without Ross. Soon after it was released, Ross issued her first single, "Reach Out And Touch (Somebody's Hand)
," which despite the Motown muscle behind it, made just #20 US. Ross getting outcharted by her former group was a surprise, but it didn't last long: her next single, a new version of "Ain't No Mountain High Enough
" went to #1. The Supremes had just one more Top 10 hit ("Stoned Love
" at #7) before disbanding in 1977.