Ross' continued career in music and film
In 1971, Ross and Motown labelmate
Marvin Gaye had begun an album of duets. The two singers clashed over Gaye's refusal to stop smoking
marijuana in the studio to appease Ross, then pregnant with her second child
Tracee Ellis Ross. As a result, the duets album,
Diana & Marvin, was completed in separate studios in 1972. Upon its 1973 release,
Diana & Marvin proved to be a success, with their cover of
The Stylistics' "
You Are Everything" becoming a Top 10 hit in the United Kingdom.
The Michael Masser-composed ballad, "
Touch Me in the Morning", became Ross' second number-one pop single as a solo artist in 1973. A resulting
Touch Me in the Morning LP was a Top 10 success in both the United States and the United Kingdom, and the title track earned Ross a second Grammy nomination.
In 1975, Ross again co-starred with Billy Dee Williams in the Motown film
Mahogany. The story of an aspiring fashion designer who becomes a runway model and the toast of the industry,
Mahogany was a troubled production from early on. The film's original director,
Tony Richardson, was fired during production and Berry Gordy assumed the director's chair himself. In addition, Gordy and Ross clashed during filming, with Ross leaving the production before shooting was completed. While a box office hit, the film was not a critical success:
Time magazine's review of the film chastised Gordy for "squandering one of America's most natural resources: Diana Ross."
Ross hit number-one on the pop charts twice in 1976 with "
Theme From Mahogany (Do You Know Where You're Going To)", and the
disco single "
Love Hangover". The successes of these singles made her 1976 album,
Diana Ross, her fourth LP to reach the Top 10. In 1977, her Broadway one-woman show earned the singer a special
Tony Award. That same show was televised as a special on
NBC and later released as
An Evening with Diana Ross.
That same year, Motown acquired the film rights to the popular Broadway play
The Wiz, an African-American reinterpretation of
L. Frank Baum's
The Wonderful Wizard of Oz. Although teenage
Stephanie Mills, a veteran of the play, was originally cast as Dorothy, Diana Ross convinced
Universal Pictures producer
Rob Cohen to have Ross cast as Dorothy, As a result, the eleven-year old protagonist of the story was altered into a shy twenty-four year old schoolteacher from
Harlem, New York. Among Ross' costars in the film were
Nipsey Russell,
Ted Ross, and her former label mate and protégé
Michael Jackson from the Jackson 5. Upon its October 1978 release, the
film adaptation of The Wiz was a costly commercial and critical failure, and was Ross' final film for Motown. The accompanying soundtrack album, however, sold over 850,000 copies.
Resuming her becalmed singing career in 1979, Ross re-teamed with Nickolas Ashford & Valerie Simpson for the album
The Boss, which became Ross' first
gold-certified album (Motown sales records before 1977 were not audited by the
RIAA, and therefore none of Motown's pre-1977 releases were awarded certifications). In 1980, Ross released her first RIAA platinum-certified disc, "
diana," produced by
Chic's front men
Nile Rodgers and
Bernard Edwards. The album included two of Ross' most successful and familiar solo hits, her fifth number-one single, "
Upside Down", and the Top 5 single "
I'm Coming Out".
diana is Ross' most successful studio album to date, peaking at number-two on the
Billboard 200 chart for three weeks and selling over six million copies.
Ross scored a Top 10 hit in late 1980 with the theme song to the 1980 film
It's My Turn. The following year, she collaborated with former
Commodores singer-songwriter
Lionel Richie on the theme song for the film
Endless Love. The
Academy Award-nominated "
Endless Love" single became Ross' final hit on Motown Records, and the Number One Record of the year. Feeling that Motown, and in particular Gordy, were keeping her from freely expressing herself, and not according her financial parity, Ross left Motown for $20 million contract to sign with
RCA Records, ending her twenty-year tenure with the label. The Ross-RCA deal was the most money ever paid to an artist until
Michael Jackson,
Madonna,
Janet Jackson and
Whitney Houston all signed bigger deals many years after Ross'. When "Endless Love" hit number-one in 1981, Ross became the first female artist in music history to place six singles at number one on the
Billboard Hot 100, surpassing
Cher's four number-ones,
Barbra Streisand's four number-ones,
Donna Summer's four number-ones and
Olivia Newton-John's four #1's. "Endless Love" remains the most successful duet in pop history.