Hart's vocals led classic Billboard Hot 100 hits like "La - La - Means I Love You," "Didn't I (Blow Your Mind This Time)" and "Ready or Not Here I Come (Can't Hide From Love)."
William Poogie Hart, lead singer of the Delfonics, dies at 77, Obituaries
William Hart, Lead Singer of Music Group The Delfonics, Dead at 77
William 'Poogie' Hart dead at 77: Delfonics lead singer suddenly passes after 'complications from surgery
William Hart Dead: Delfonics Lead Singer, Songwriter Was 77 – The Hollywood Reporter
William Hart, lead singer/songwriter of The Delfonics, dead
How did William Hart die? The Delfonics singer, 77, - ETSBUY
William Hart Dead: The Delfonics Singer Dies at 77 – Billboard
William Hart, Founding Member of the Delfonics, Dies at 77
Celebrity deaths 2022: Stars who died this year
William Hart, Driving Force Behind the Delfonics, Dies at 77 - The New York Times
William 'Poogie' Hart, lead singer of the Delfonics and voice of the Philadelphia sound, dies at 77
William Hart, Delfonics Singer, Dead at 77
William Hart, Delfonics lead singer and songwriter, dies aged 77, Soul