True Motown royalty, Mary Wells earned pop immortality with her 1964 signature song "My Guy," written by Smoky Robinson. These 47 tracks of previously unreleased material come from her four highly productive years at "Hitsville USA," and it was worth the wait.
"The set begins with smooth and soulful post–doo wop numbers…. The girl group soul of 'Why Do You Want to Let Me Go?' fades into a series of collaborations with Smokey Robinson like the happy-go-lucky calypso tinge of 'To Lose You' and the smoky heartbreak of 'My Heart Is Like a Clock.' … Tracks like 'Have a Little Patience (And Wait)' feature backing vocals by the Supremes and capture the mixture of caffeinated soul and youthful rock & roll that Motown owned the trademark to. The same 1963 sessions yielded coulda-been-hits like 'Free From Your Spell' and the spirited 'Your Loss, My Gain.'… The set is rounded out by seven duets with Marvin Gaye and a host of standard tunes from the era when Berry Gordy was pushing his artists toward more adult material."—All Music Guide