Question: Diana Ross and Leslie West, are Americans with which occupation?
Context: The Diana Ross Playground is located in New York City's Central Park, inside the park at West 81st Street and Central Park West.  Its namesake, the recording artist Diana Ross, who lives across the street in The Beresford, gave two legendary free concerts in Central Park on July 21 and 22, 1983 (attendance estimated to be between 400,000 and 800,000 people), and pledged to fund the project with proceeds from the television rights.  However, when a thunderstorm during the first (and only scheduled) concert destroyed all of its memorabilia/merchandise, the performance did not prove profitable, and Ms. Ross used personal resources to fund the project.  Groundbreaking took place in September, 1986, with both Ross and then-Mayor Ed Koch present.  Ross reportedly called the event "one of the most fulfilling aspects of [her] life and career." "My Mistake (Was to Love You)" is a song recorded as a duet by Diana Ross and Marvin Gaye which was the second single released off the singers' duet album "Diana & Marvin" in February 1974.  One of the original songs featured on that album, "My Mistake (Was to Love You)" was written by Gloria Jones and Pam Sawyer, the team responsible for the Gladys Knight & the Pips' classic "If I Were Your Woman".  Pam Sawyer was also the co-writer (with Michael Masser) of the Diana Ross hit "Last Time I Saw Him" which dropped out of the Top 40 just prior to the Top 40 debut of "My Mistake (Was to Love You)" in March 1974: Sawyer would subsequently co-write (with Marilyn Mcleod) Diana Ross' 1976 #1 hit "Love Hangover".  The narrative of "My Mistake (Was to Love You)" outlines how two lovers' relationship fell apart because the man, according to the woman, felt as if "a girl loves you, you only call them weak", while the man admits that he let his lover "slip through, like grains of sand".  The song peaked at #15 on the "Billboard" R&B singles chart and #19 on the "Billboard" Pop singles chart. Diana Ross & the Supremes: Greatest Hits Vol.  3 is a 1969 compilation album by Diana Ross & the Supremes, released on the Motown label.  It features all of the hits released by the group between 1967 and 1969 save for the Supremes/Temptations duet singles.  After Florence Ballard's mid-1967 departure from the group, Supremes singles were recorded by Diana Ross with session singers The Andantes on backgrounds instead of new Supreme Cindy Birdsong and founding member Mary Wilson, including "Love Child" and "Someday We'll Be Together" (Birdsong's voice in fact does not appear on this album). "Take Me Higher" is a 1995 single by Diana Ross.  The single is the title track of Diana Ross' nineteenth studio album of her career and was released on the Motown label.  "Take Me Higher was written by Sally Jo Dakota, Nikita Germaine, and Narada Michael Walden.  The single was also produced by Walden and was Diana Ross' fifth and to date, last number one on the US dance chart.  "Take Me Higher" also went to #77 on the soul singles chart.  Overseas, the single went to #32 in the UK. Diana Ernestine Earle Ross (born March 26, 1944) is an American singer, songwriter, actress, and record producer.  Born and raised in Detroit, Michigan, Ross rose to fame as the lead singer of the vocal group The Supremes, which, during the 1960s, became Motown's most successful act, and is to this day the United States' most successful vocal group, as well as one of the world's best-selling girl groups of all time.  Ross' success as lead singer of The Supremes made it possible for future African-American R&B and soul acts to find mainstream success.  The group released a record-setting twelve number-one hit singles on the US "Billboard" Hot 100, including "Where Did Our Love Go", "Baby Love", "Come See About Me", "Stop!  In the Name of Love", "You Can't Hurry Love", "You Keep Me Hangin' On", "Love Child", and "Someday We'll Be Together". Diana Ross & the Supremes: The No. 1s is a 2003 compact disc collection of the number-one singles achieved by The Supremes when led by Diana Ross (they subsequently had a No. 1 hit with "Stoned Love") and solo Diana Ross singles on the American and United Kingdom pop charts.  The album features 23 tracks and a bonus remix. "A Brand New Day", also known as "Everybody Rejoice", is a song from the 1975 Broadway musical "The Wiz" written by American R&B singer and songwriter Luther Vandross.  (In 1976 Vandross recorded a version of the song for his album "Luther", on Cotillion Records.)  In the play, the song is sung to celebrate because Dorothy has killed Evilene, the tyrannical Wicked Witch of the West.  Dorothy, the Tin Man, the Cowardly Lion, and the Scarecrow sing the song with the newly freed Winkies, who were ruled and enslaved by Evilene.  It was later featured in the 1978 film version, sung by cast members Diana Ross, Michael Jackson, Nipsey Russell, and Ted Ross (credited as The Wiz Stars).  Given the all-Black cast of "The Wiz", the song's many references to freedom and new possibilities (especially as sung by African American characters who had just been freed from enslavement) certainly invoked the struggles and history of Blacks in America.  In the onscreen version of the song, Nipsey Russell can even be heard exclaiming "Free at last!" —a reference to civil rights activist Martin Luther King Jr. (His impromptu addition to the song is not heard on the soundtrack album version, instead replaced by sung vocals by Diana Ross.) Leslie West (born Leslie Weinstein; October 22, 1945) is an American rock guitarist, vocalist, and songwriter.  He is best known as a founding member of the hard rock band Mountain. Greatest Hits is a 1972 compilation album released by American singer Diana Ross on Motown.  Due to Ross' strong popularity in the UK, Motown's UK label Tamla-Motown, issued this best-of only in England and Australia.  A compilation album of Ross' early solo hits wouldn't be issued in her homeland America until 1976; "Diana Ross' Greatest Hits". "Remember Me" is a 1970 single recorded and released by singer Diana Ross on the Motown label and was included on her 1971 album Surrender.  In the US, the song was Ross' third top forty pop hit within a year peaking at number sixteen on the Hot 100 chart, number ten on the soul chart.  It was also Diana Ross' third entry on the Easy Listening chart, where it went to number twenty.  It gave Diana her 3rd gold single in a year's time and her 3rd Top 20 charting single with Cash Box, peaking at #8.  Overseas, "Remember Me" reached the top ten in the UK, where it peaked at number seven.  It was the lead single from Ross' 1971 album, "Surrender".
Answer: songwriter