Following her departure from the Supremes in 1970, Ross released her eponymous debut solo album that same year, featuring the number-one Pop hit “Ain’t No Mountain High Enough”. She later released the album Touch Me in the Morning in 1973; its title track reached number 1, as her second solo No. 1 hit. She continued a successful solo career through the 1970s, which included hit albums like Mahogany and Diana Ross and their number-one hit singles, “Theme from Mahogany” and “Love Hangover”, respectively. Her 1980 album Diana produced another number-one single, “Upside Down”, as well as the international hit “I’m Coming Out”. Ross’ final single with Motown during her initial run with the company achieved her sixth and final US number-one Pop hit, the duet “Endless Love” featuring Lionel Richie, whose solo career was launched with its success.