The name William Hart may not mean much to most, but you'll remember his songwriting and his singing on Delfonics classics like "La La (Means I Love You,") "Didn't I Blow Your Mind This Time" and "Ready Or Not (Here I Come.)" He passed away at 77 after having breathing troubles and complications from surgery. 

William Hart, Co-Founder and Lead Singer for Soul Stars the Delfonics, Dead at 77