Did teddy pendergrass ever sing greatest love of all?

No, Teddy Pendergrass did not sing "Greatest Love of All." The song was famously performed by Whitney Houston and originally written by Michael Masser and Linda Creed. It was released on her debut album in 1985, becoming one of her signature songs. Teddy Pendergrass is known for his own hits, but "Greatest Love of All" is not among them.