Wilbert Hart is an American singer-songwriter and musician, best known as a founding member of the doo-wop group The Delfonics. Born on June 17, 1940, in Philadelphia, Pennsylvania, Hart’s smooth falsetto and harmony arrangements contributed significantly to the group's distinctive sound, which became emblematic of the Philadelphia soul genre in the late 1960s. The Delfonics gained prominence with hits like "La-La (Means I Love You)" and "Didn't I (Blow Your Mind This Time)," both of which showcased their lush harmonies and romantic themes. "La-La (Means I Love You)" reached number 4 on the Billboard Hot 100 in 1968 and has been widely covered and sampled, influencing various artists across different genres. Hart's impact on music extends beyond his own recordings, as The Delfonics' style has influenced numerous artists in R&B and hip-hop, with their work being sampled by notable musicians like Missy Elliott and The Roots. Hart's contributions to the doo-wop and soul genres have solidified his legacy as an essential figure in the evolution of American music.