William “Poogie” Hart, the Grammy-award-winning lead singer of the R&B band The Delfonics, has died, TMZ has learned.
His son, Hadi, tells TMZ … William was having trouble breathing so he was recently taken to Temple University Hospital in Philadelphia, where he passed away Thursday from complications during surgery.
![](https://imagez.tmz.com/image/98/4by3/2022/07/15/981ba4cbce1f45619687ea141fa055b3_md.jpg)
William and his brother, Wilbert, launched the Philly-based group in the late ’60s with Randy Cain, Ritchie Daniels and Thom Bell. The group would have a major impact on the development of the Philadelphia sound, known as T.S.O.P.