The Supremes were under a record label.
The Supremes . Founded as the Primettes in Detroit , Michigan , in 1959 , the Supremes were the most commercially successful of Motown 's acts and are , to date , America 's most successful vocal group with 12 number one singles on the Billboard Hot 100 . Most of these hits were written and produced by Motown 's main songwriting and production team , Holland -- Dozier -- Holland .