Diana Ross had a US number-one Pop hit.
Diana (album) . The album is the biggest-selling studio album of Ross 's career , selling nine million copies worldwide and spawning three international hit singles , including the US number 1 hit `` Upside Down '' . Diana Ross . That same year , her album `` Lady Sings The Blues '' , which was the original soundtrack of her film based on the life of jazz singer Billie Holiday , went to no. 1 on the Billboard Hot 200 Albums Chart , selling more than 300,000 copies within its first 8 days of release .