Remastered Two on One Reissue. Her EMI 1959 Debut Release "take a Number" was Arranged and Conducted by Nelson Riddle. 1960"s "hooray for Love" was Arranged and Conducted by Jack Marshall. Mavis Rivers Has Been Described as One of the Greatest Female Jazz Singers Ever by Many of her Peers. She Has a Cult Following all Over the World Amongst Jazz Purists.